Engine Oil | Summit Racing

Driven Racing Oil GP-1 Synthetic Blend High Performance Motor Oil

Whether you're running flat tappet, roller, or overhead cams—Driven Racing Oil GP-1 synthetic blend motor oil is available in several viscosities to cover your needs. It's compatible with methanol, E85, and high-octane race fuel. Blended with genuine Pennsylvania-grade base crude, this oil achieves a greater pressure-viscosity coefficient for excellent high-temperature/high-shear (HTHS) film thickness. GP-1 delivers maximum engine protection by combining the unique properties and cling of the Pennsylvania-grade base oil, with proprietary high-zinc (ZDDP) additive technology. Driven Racing Oil GP-1 synthetic blend motor oil is ideal for competition engines, modern engines, classic cars, and imports with high performance engines. Order the proper weight for your application.

5.0 out of 5 stars ( 39 )

$51.14

—

$204.56

Schaeffer's 700 SynShield Durability Advantage Diesel Engine Oil

Schaeffer's 700 SynShield Durability Advantage diesel engine oil is formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination, and aeration. It provides excellent equipment durability and longevity even during harsh, extreme duty operating conditions. Using Schaeffer's proprietary friction modifiers, this heavy-duty diesel oil creates a slippery, tenacious shield that prevents metal-to-metal contact, while significantly reducing wear on bearings, rings, pistons, cylinders, and valvetrains. Schaeffer's 700 SynShield Durability Advantage diesel engine oil is suitable for use in emission compliant engines that utilize heavy exhaust gas recirculation (EGR) and exhaust after-treatment devices, such as diesel particulate filters (DPFs) with or without diesel oxidation catalysts (DOCs) and selective catalytic reduction (SCR). It can also be used in low-emission certified diesel engines that are equipped with EGR, older non-EGR containing diesel engines, and off-highway diesel engines. Performance benefits: * Improved wear protection—85 percent less wear than conventional CJ-4 oils * High thermal and oxidative stability for greater resistance to viscosity thickening and the formation of deposits, sludge, and varnish * Strong soot-busting, deposit-dispersing capability—77 percent greater soot handling than conventional CJ-4 oils * Excellent shear stability for stay-in-grade performance throughout the oil drain interval * Superior low volatility characteristics to control oil consumption * Improved and optimized engine durability and reliability during high mileage, hour accumulation situations * Excellent protection against oil aeration and foaming

5.0 out of 5 stars ( 3 )

$41.26

—

$247.54

Driven Racing Oil DBR Break-In Diesel Motor Oil

Driven Racing Oil DBR break-in diesel motor oil provides a good foundation for maximum diesel durability and performance. DBR is formulated to promote proper surface mating during the critical break-in process, and chemically assists with piston ring sealing in high performance and turbocharged diesel engines. Driven DBR break-in diesel motor oil offers: * ZDDP fortified cam protection * Chemically seals piston rings * Protects turbocharger bearings * Ensures proper surface mating

5.0 out of 5 stars ( 2 )

$44.97

—

$179.88

Maxima RS Full Synthetic Oil

Maxima RS full synthetic oil is a 100 percent synthetic, triple ester-based race-grade oil. This industry-leading lubricant offers the ultimate in engine performance and protection. The technologically advanced formula contains special anti-wear/extreme pressure additives to protect critical engine components from heavy loads and peak temps generated by high performance engines. RS is a regenerative, high-viscosity index, synthetic polymer system that resists mechanical breakdown and viscosity loss. It also delivers increased horsepower and torque, superior engine cleanliness; reduces wear on bearings, cams, lifters, and crankshafts—and extends engine life. Maxima RS full synthetic oil is created for world-class racers who are bold enough to challenge the very limits of possibility!

4.6 out of 5 stars ( 10 )

$54.99

—

$279.96

Maxima PERFORMANCE BREAK-IN Oil

Maxima PERFORMANCE BREAK-IN oil is specifically designed for breaking in engines with flat tappet camshafts, roller elements, or where elevated levels of anti-wear additives are needed. The high zinc/phosphorous formula is blended with highly refined, pure petroleum base stocks to provide an optimum ring seal. The 2X zinc structure protects for an extended temperature range, outperforming conventional break-in oils. By combining two different zinc compounds, Performance break-in oil activates at lower temperatures and offers more protection at elevated temperatures. It is perfectly balanced and requires no other additives. Order the oil weight recommended for your application.

5.0 out of 5 stars ( 14 )

$33.79

—

$135.16

Lucas Long Drain Truck Oil

Lucas Long Drain Truck Oil is a high-TBN oil designed to last up to twice as long as plain 15/40 oils. You can expect less oil consumption and higher oil pressure. This oil provides cool, quiet performance with extended drain intervals, longer engine life, and no dry starts. It is a perfect blend for diesel as well as gasoline engines.

4.96 out of 5 stars ( 46 )

$30.99

—

$113.88

Schaeffer's 9000 SynShield OTR Plus Full Synthetic Diesel Engine Oil

Schaeffer's 9000 SynShield OTR Plus Full Synthetic diesel engine oil is a heavy-duty oil offering strong fuel economy benefits without sacrificing engine durability. Formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination, and aeration, this oil contains proprietary friction modifiers that create a slippery, tenacious shield that prevents metal-to-metal contact for increased engine efficiency. Schaeffer's 9000 SynShield OTR Plus diesel engine oil is suitable for use in emission compliant engines that utilize heavy exhaust gas recirculation (EGR) and exhaust after-treatment devices such as diesel particulate filters (DPFs) with or without diesel oxidation catalysts (DOCs) and selective catalytic reduction (SCR). It can also be used in low-emission certified diesel engines that are equipped with EGR, older non-EGR containing diesel engines, and off-highway diesel engines. Performance benefits: * Improved wear protection—71 percent less wear than conventional 5W-40 CJ-4 oils * High thermal and oxidative stability for greater resistance to viscosity thickening and the formation of deposits, sludge, and varnish * Strong soot-busting, deposit-dispersing capability—46 percent greater soot handling than conventional 5W-40 CJ-4 oils * Excellent shear stability for stay-in-grade performance throughout the oil drain interval * Superior low volatility characteristics to control oil consumption * Improved and optimized engine durability and reliability--especially for older model engines * Excellent protection against oil aeration and foaming * Excellent cold crank start-ability and low temperature pumpability

5.0 out of 5 stars ( 1 )

$47.53

—

$285.20

Schaeffer's Supreme 7000 Synthetic Plus Racing Oil

Schaeffer's Supreme 7000 Synthetic Plus Racing Oil is a high zinc, multi-grade, para-synthetic engine oil designed for high performance gasoline racing engines, including those that contain flat tappet cams and those that are turbocharged or supercharged. Supreme 7000 racing oil is engineered with severely hydro-finished polyalphaolefin (PAO) synthetic base oils, severely raffinate hydro-converted Group II Plus, a proprietary additive package, and a viscosity index improver. Using proprietary friction modifiers, it creates a slippery, tenacious shield to prevent metal-to-metal contact. As conditions intensify, this high performance racing oil resists thinning, and shields critical engine parts from heat and wear. By reducing friction and wear, Supreme 7000 Synthetic Plus racing oil increases engine efficiency and extends engine life, while its high detergency and dispersancy suppresses the formation of deposits, sludge, and varnish, providing exceptional keep-clean performance. Available in several weights, select the appropriate one for your vehicle. Performance benefits: * Extra protection for when engines are operating at higher temperatures * Rapid circulation and excellent pump-ability * Extra zinc to protect flat tappet cam engines and other components from wear * Excellent high temperature, high shear performance * Reduced oil ageing for increased drain intervals * Substantially reduced oil consumption * Compatibility with all types of seals Note: Supreme 7000 Synthetic Plus racing oil is not recommended for 4-cycle, ATV, or motorcycle engines specifying a JASO MA or MB, NMMA FC or FC-W 4-cycle oils.

5.0 out of 5 stars ( 6 )

$48.46

—

$318.74

Red Line 50WT Race Oil

Red Line 50WT race oil is a multigrade SAE 15W50 full-synthetic oil enhanced with ZDDP. The thermal stability, film strength and reduced parasitic drag found in Red Line engine oils all contributes to lower operating temps, increased engine life and more power. Red Line has a prestigious reputation with racers and enthusiasts alike for creating products that perform and protect better than any on the market. From 11,000 hp nitro engines to class-style applications in all forms of high performance and racing, Red Line has got you covered. Their lineup spans everything from a 5WT race oil all the way up to 70WT nitro oil. Keep your race competition vehicle running at its peak performance with the proper engine oil from Red Line. Born in a lab—proven on the track! Features, benefits, and specifications: * Multigrade SAE 15W50 full-synthetic oil enhanced with ZDDP (for racing engine applications only) * Used in applications with wider bearing clearances * Popular with sprint and midget applications on methanol—offers less frequent oil changes due to less fuel dilution * Special detergents for improved lubricity and less detonation * Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution * Each Red Line product has no less than 2200ppm of zinc and phosphorus for anti-wear * Each Red Line race oil product is a multi-grade, offering 2 to 4 percent more power than oil of a similar viscosity * Improved protection at startup, lower oil temp, cleanliness * Remember to change these oils more frequently than regular motor oils

5.0 out of 5 stars ( 5 )

$79.85

—

$303.43

Red Line 40WT Race Oil

Red Line 40WT race oil is a multigrade SAE 15W40 full-synthetic oil enhanced with ZDDP. The thermal stability, film strength and reduced parasitic drag found in Red Line engine oils all contributes to lower operating temps, increased engine life and more power. Red Line has a prestigious reputation with racers and enthusiasts alike for creating products that perform and protect better than any on the market. From 11,000 hp nitro engines to class-style applications in all forms of high performance and racing, Red Line has got you covered. Their lineup spans everything from a 5WT race oil all the way up to 70WT nitro oil. Keep your race competition vehicle running at its peak performance with the proper engine oil from Red Line. Born in a lab—proven on the track! Features, benefits, and specifications: * Multigrade SAE 15W40 full-synthetic oil enhanced with ZDDP (for racing engine applications only) * Versatile product used in stock car racing, road racing and sprint cars * Used by many of the top Dirt Late Model teams * Used by top teams in NASCAR, Spec engines for Camping World East and West Series * Reformulated for improved frictional properties * Special detergents for improved lubricity and less detonation * Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution * Each Red Line product has no less than 2200ppm of zinc and phosphorus for anti-wear * Each Red Line race oil product is a multi-grade, offering 2 to 4 percent more power than oil of a similar viscosity * Improved protection at startup, lower oil temp, cleanliness * Remember to change these oils more frequently than regular motor oils

5.0 out of 5 stars ( 13 )

$79.85

—

$303.43

Manufacturer Rebate

Mobil Delvac Extreme Motor Oil

Mobil Delvac Extreme motor oil is a premium synthetic blend, high-performance diesel engine oil. It helps extend engine life, while providing long drain capability for modern diesel engines operating in extreme conditions. Delvac Extreme is recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway, including engines operating under heavy loads. Fully backward compatible, this oil delivers exceptional performance in both newer and older heavy-duty engines. It delivers updated high-temperature performance under the extreme operating environments found in the trucking, mining, construction, and agricultural industries. Accordingly, Mobil Delvac Extreme motor oils meet or exceed the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and CH-4 service categories, as well as key OEM requirements.

4.66 out of 5 stars ( 29 )

$23.99

—

$86.36

Driven Racing Oil GP-1 High Performance Break-In Motor Oil

Driven Racing Oil GP-1 high performance break-in motor oil formulation starts with the best source—premium Pennsylvania-grade crude and its above-average paraffin and other waxes content. Next, it's combined with Driven's high-zinc/low-detergent additive package for an enhanced, synergetic chemical balance to correctly prep your new engine. This oil eliminates the need for any supplemental ZDDP (high zinc)/initiation additives, whether you've got a flat tappet, overhead, or roller cam engine. Driven Racing Oil GP-1 high performance break-in motor oil features a viscosity equivalent to SAE 30, and can equally be used for dyno tuning or first-time street operation

4.92 out of 5 stars ( 13 )

$52.60

—

$210.40

Schaeffer's Supreme 9000 Full Synthetic Racing Oil

Schaeffer's Supreme 9000 Full Synthetic racing oil is a high zinc, heavy-duty multi-grade engine oil designed for high performance gasoline racing engines, including those that contain flat tappet cams and those that are turbocharged or supercharged. Supreme 9000 racing oil is engineered with severely hydro-finished polyalphaolefin (PAO) synthetic base oils, severely hydrocracked synthetic base oils, a proprietary additive package, and a viscosity index improver. Using proprietary friction modifiers, it creates a slippery, tenacious shield to prevent metal-to-metal contact. As conditions intensify, this high performance racing oil resists thinning, and shields critical engine parts from heat and wear. By reducing friction and wear, Supreme 9000 Full Synthetic racing oil increases engine efficiency and extends engine life, while its high detergency and dispersancy suppresses the formation of deposits, sludge, and varnish, providing exceptional keep-clean performance. Select the volume and quantity needed for your vehicle. Performance benefits: * Extra protection for when engines are operating at higher temperatures * Rapid circulation and excellent pump-ability * Extra zinc to protect flat tappet cam engines and other components from wear * Excellent high temperature, high shear performance * Reduced oil ageing for increased drain intervals * Substantially reduced oil consumption * Compatibility with all types of seals Note: Supreme 9000 Full Synthetic racing oil is not recommended for 4-cycle, ATV, or motorcycle engines specifying a JASO MA or MB, NMMA FC or FC-W 4-cycle oils.

5.0 out of 5 stars ( 1 )

$52.04

—

$312.26

Schaeffer's SynShield All-Performance Full Synthetic Engine Oil

Schaeffer's SynShield All-Performance Full Synthetic engine oil offers benefits like superior wear protection, leading to a longer engine life and better durability, especially against timing chain and valvetrain wear. It provides exceptional resistance to heat and oxidation, preventing oil thickening, deposits, and sludge, while maintaining its viscosity for consistent protection. SynShield All-Performance Full Synthetic engine oil also offers excellent low-temperature performance for easier startups and better oil flow, helps control oil consumption and maintains fuel economy. Choose the oil viscosity needed for the proper engine lubrication and protection for your vehicle by referring to your vehicle's owner's manual. Key features and benefits: * Provides robust wear protection for vital engine parts like timing chains and valvetrains * Resists high temperatures, preventing oil breakdown, viscosity increase, and the formation of damaging sludge, deposits, and varnish * Reduces wear and tear on critical components, contributing to improved engine durability and reliability * Features optimized performance that helps maintain fuel efficiency * Features superior low volatility characteristics that help reduce oil consumption * Offers excellent cold crank startability and pumpability, ensuring quick and smooth lubrication during cold starts * Features strong, soot-busting and deposit-dispersing capabilities, keeping the engine exceptionally clean * Maintains its viscosity for the entire oil drain interval, ensuring consistent protection and stay-in-grade performance

5.0 out of 5 stars ( 2 )

$46.85

—

$281.07

Schaeffer's SynShield Ultra Performance Diesel Engine Oil

Schaeffer's SynShield Ultra Performance diesel engine oil is a heavy-duty oil offering strong fuel economy benefits without sacrificing engine durability. Formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination, and aeration, this oil contains proprietary friction modifiers that create a slippery, tenacious shield, preventing metal-to-metal contact for increased engine efficiency. Schaeffer's SynShield Ultra Performance diesel engine oil is suitable for use in emission compliant engines that utilize heavy exhaust gas recirculation (EGR) and exhaust after-treatment devices such as diesel particulate filters (DPFs) with or without diesel oxidation catalysts (DOCs) and selective catalytic reduction (SCR). It can also be used in low-emission certified diesel engines that are equipped with EGR, older non-EGR containing diesel engines, and off-highway diesel engines. Performance benefits: * Improved wear protection—85 percent less wear than conventional CJ-4 oils * High thermal and oxidative stability for greater resistance to viscosity thickening and the formation of deposits, sludge, and varnish * Strong soot-busting, deposit-dispersing capability—77 percent greater soot handling than conventional CJ-4 oils * Excellent shear stability for stay-in-grade performance throughout the oil drain interval * Superior low volatility characteristics to control oil consumption * Improved and optimized engine durability and reliability--especially for older model engines * Excellent protection against oil aeration and foaming * Excellent cold crank start-ability and low temperature pump-ability

5.0 out of 5 stars ( 2 )

$41.26

—

$247.54

Maxima SEMI-SYN Semi-Synthetic Oil

Maxima SEMI-SYN Semi-Synthetic racing oil is a complex blend of synthetic esters and highly refined petroleum base stocks, offering protection beyond conventional oils. Technologically advanced additives containing special anti-wear/extreme-pressure features protect critical engine components from punishing loads and peak temperatures generated by high performance engines. Advanced, shear-stable polymers resist mechanical breakdown and viscosity loss of the oil. SEMI-SYN delivers increased horsepower, optimum engine cleanliness, reduces wear on bearings, cams, lifters, and crankshafts—and extends engine life. The high zinc/phosphorous formula is engineered for use in flat tappet and roller element engines. Select the oil weight recommended for your application.

5.0 out of 5 stars ( 3 )

$38.99

—

$163.16

Red Line 60WT Drag Race Oil

Red Line's 60WT drag race oil is a multigrade SAE 20W60 full-synthetic oil enhanced with ZDDP. The thermal stability, film strength and reduced parasitic drag found in Red Line engine oils all contributes to lower operating temps, increased engine life and more power. Red Line has a prestigious reputation with racers and enthusiasts alike for creating products that perform and protect better than any on the market. From 11,000 hp nitro engines to class-style applications in all forms of high performance and racing, Red Line has got you covered. Their lineup spans everything from a 5WT race oil all the way up to 70WT nitro oil. Keep your race competition vehicle running at its peak performance with the proper engine oil from Red Line. Born in a lab—proven on the track! Features, benefits, and specifications: * Multigrade SAE 20W60 full-synthetic oil enhanced with ZDDP (for racing engine applications only) * Popular in Top Alcohol and Pro Mod classes, AHDRA Nitro bikes and Blown Alcohol Tractor Pulling * Can be heated to evaporate fuel dilution and re-use * Improved valvetrain wear, less piston scuffing and improved bearing wear * Reformulated for improved frictional properties * Special detergents for improved lubricity and less detonation * Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution * Each Red Line product has no less than 2200ppm of zinc and phosphorus for anti-wear * Each Red Line race oil product is a multi-grade, offering 2 to 4 percent more power than oil of a similar viscosity * Improved protection at startup, lower oil temp, cleanliness * Remember to change these oils more frequently than regular motor oils

5.0 out of 5 stars ( 1 )

$79.85

—

$303.43

On Sale

Royal Purple Duralec Super Diesel Motor Oil

Royal Purple Duralec Super diesel motor oil is a high performance engine oil made for emission-controlled diesel engines utilizing emissions equipment such as: DPF's, catalytic converters, EGR, and SCR injection. It is specifically formulated to maximize component life, extend drain intervals, and improve fuel performance. As a premium synthetic formulation, Royal Purple Duralec Super has excellent high-temperature break-down resistance and low-temperature pump ability to minimize cold induced startup wear. Duralec's stable additive package has good soot dispersancy to protect against oil thickening and abrasive wear, while providing rust and corrosion protection, as well as helping to prevent varnish and sludge formation.

4.88 out of 5 stars ( 69 )

$28.99

—

$86.97

$26.09

—

$78.27

Red Line Synthetic Motor Oil

Red Line synthetic motor oil is a unique formula designed to provide the highest protection, cleanliness, and superior drain intervals—with the lowest friction for your gasoline, diesel, motorcycle, or marine engine. Choose the viscosity best suited for your engine—and experience the performance and protection of Red Line synthetic motor oil. Features, benefits, and details include: * Fully-synthetic ester formula for passenger cars, light trucks, performance vehicles, and marine applications * Excellent wear protection and friction reduction across a wide range of operating conditions * High detergency allows extended drain intervals and provides increased cleanliness * Improved fuel economy and ring seal for more power * Superior high-temperature stability and oxidation resistance increases lubrication of hot metal, compared to other synthetics * High natural viscosity index (VI) provides thicker oil film in bearings and cams * Less evaporation than other synthetics for improved efficiency and ring seal * Blended with polyol ester base stocks that feature natural multi-grade properties, avoiding unnecessary additives that hinder lubricity * All products are completely compatible with other conventional and synthetic motor oils

4.95 out of 5 stars ( 158 )

$59.32

—

$249.36

Hot Shot's Secret Black Diamond Outlaw Oil

Hot Shot's Secret Black Diamond Outlaw oil is the most complete diesel oil available. Not only is it 100 percent PAO synthetic—it also includes a robust Total Base Number (TBN) of 14, extreme-pressure additives—including zinc—and it is blended with patented FR3 Nano Technology and additional CK-4 additive. This means Black Diamond Outlaw oil provides you with unmatched protection and performance compared to other oils on the market. The harder you run your diesel, the more protection you need, and Hot Shot's Secret Black Diamond Outlaw oil offers just that. With nearly three times the amount of zinc mandated by API for the CK-4 specification, wear protection will never be an issue. Your oil will stay cleaner longer, protect against deposit formation and shearing and will provide an increase in horsepower and fuel economy. Features and benefits: * Recommended for use for heavy-duty trucks, agriculture, construction, and industrial equipment, drilling rigs, stationary engines, turbo charged and racing engines where increased protection and TBN are preferred * Zinc levels nearly 3 times that of CK-4 oils * Antimony levels over 400 ppm * Improved boundary layer protection * Anti-rust protection * Widens operating temperature range * Improves fuel economy up to 3 percent, as well as improves horsepower * Reduces friction * Extends oil change interval * Increases film strength, improves oxidation stability and aeration control * Reduces operating temperature * Reduces wear and shearing, as well as reduces deposit formation * Reduces noise and vibration

5.0 out of 5 stars ( 1 )

$62.12

Red Line 30WT Race Oil

Red Line 30WT race oil is a multigrade SAE 10W30 full-synthetic oil enhanced with ZDDP for racing engines only. If you watch your oil temp, you know this viscosity is likely the right one. Red Line has a reputation with racers and enthusiasts alike for creating products that perform and protect better than any on the market. No compromises. From 11,000 hp nitro engines to class-style applications in all forms of high performance and racing, Red Line has got you covered. Their lineup spans everything from a 5WT race oil all the way up to Red Line's 70WT nitro oil. Keep your race competition vehicle running at its peak performance with the proper engine oil from Red Line! Born in a lab—proven on the track! Features, benefits, and specifications: * Multigrade SAE 10W30 all-synthetic oil enhanced with ZDDP (for racing engine applications only) * Popular in NASCAR and Road Racing * Reformulated for improved frictional properties * Special detergents for improved lubricity and less detonation * Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution * Each Red Line product has no less than 2200ppm of zinc and phosphorus for anti-wear * Each Red Line race oil product is a multi-grade, offering 2 to 4 percent more power than oil of a similar viscosity * Improved protection at startup, lower oil temp, cleanliness * Remember to change these oils more frequently than regular motor oils

5.0 out of 5 stars ( 7 )

$65.99

—

$303.43

Maxima PERFORMANCE High-Performance Oil

Maxima PERFORMANCE high-performance oil is an exclusive blend of highly refined petroleum base stocks and technologically advanced additives. Special anti-wear/extreme pressure additives protect critical engine components from extreme loads and peak temperatures generated by high performance engines. Advanced, shear-stable polymers resist mechanical breakdown and viscosity loss of the oil. Maxima PERFORMANCE delivers increased horsepower; optimum engine cleanliness; reduces wear on bearings, cams, lifters, and crankshafts; and extends engine life. The high zinc/phosphorous formula is engineered for use in flat tappet and roller element engines. Choose the oil weight recommended for your application.

4.92 out of 5 stars ( 12 )

$53.99

—

$215.96

Valvoline Premium Blue Extreme Full Synthetic Diesel Engine Oil

Valvoline Premium Blue Full Synthetic Engine Oil delivers extreme protection for diesel and gas engines. The heavy-duty formula is specially designed for hardworking trucks and equipment in both on-road and off-highway applications. This engine oil is the "The Only One" endorsed and recommended by Cummins—and features exceptional oxidation resistance, outstanding wear protection and superior deposit performance compared to industry requirements. Valvoline Premium Blue Heavy-Duty Full Synthetic Engine Oil: How the Tough Get Going! Notes: * Superior synthetic base stocks provide faster, safe starts during freezing weather—and enhanced thermal properties for hot weather operations * Outstanding oxidation resistance supports long oil life in heavy-duty engines * Superior wear protection for hardworking heavy-duty trucks and equipment * Available individually or in a set of 3

5.0 out of 5 stars ( 1 )

$31.99

—

$86.37

On Sale

Royal Purple Duralec Ultra Diesel Motor Oil

Royal Purple Duralec Ultra diesel motor oil is specifically formulated to maximize performance and meet the demands of today's heavy-duty engines. Duralec Ultra is fortified with a high level of zinc/phosphorus anti-wear additive, along with Royal Purple's proprietary Synerlec additive technology. Synerlec creates a tenacious ionic bond with metal surfaces, providing protection upon startup, and greatly increased film strength that helps to eliminate metal-to-metal contact, even under severe conditions. Additional performance advantages include: * Superior corrosion protection * Low coefficient of friction results in optimized fuel efficiency * Better wear protection * Natural solvency keeps engines cleaner than detergents alone * Oxidation and heat stability greatly extends oil drain intervals * Compatible with other mineral and synthetic motor oils * Reduces exhaust emissions * Mates engine parts * Will not harm seals * API warranty compliant * Recommended for 2- and 4-cycle diesels; including automotive, commercial fleet, and stationary industrial applications

4.69 out of 5 stars ( 16 )

$35.99

—

$107.97

$32.39

—

$97.17