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Royal Purple HMX high-mileage motor oil is specially formulated with robust zinc/phosphorous anti-wear additives and proprietary Synerlec technology to minimize aging and restore lost engine performance. It's chemically-enhanced to revitalize hardened seals, thereby reducing oil consumption common in higher mileage engines. Stout detergents remove engine deposits and maintain cleanliness to promote engine longevity. Royal Purple's advanced Synerlec technology provides exceptional film strength, which lessens friction for peak engine performance. HMX high-mileage motor oil offers outstanding oxidation resistance to safely extend oil drains; plus an ionic attraction to metal components to maintain a film of oil on engine parts, minimizing start-up wear.
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$36.99
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$50.99
Royal Purple Premium High Performance motor oil combines premium synthetic base oils with proprietary additive technologies to exceed protection and performance requirements of new modern engines. These often include smaller displacements, turbo chargers, gasoline direct injection (GDI), and start/stop systems. Modern gasoline direct injection (GDI) engines have achieved levels of power and fuel economy never before possible in passenger car engines. As a result, smaller engines operate at much higher loads across all engine speeds. This has caused increased wear in critical areas of the engine, and created a destructive phenomenon called low-speed pre-ignition (LSPI). The unique, state-of-the-art additive technology in Royal Purple High Performance engine oils is designed specifically to address these issues, and help engines maintain performance and reliability.
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$37.50
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$38.79
On Sale
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
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$35.99
$32.39
On Sale
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.
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$28.99
$26.09
Royal Purple Max-Atomizer fuel injector cleaner is a fully-synthetic, highly concentrated, high performance fuel injector cleaner. Specially formulated to solve problems with today's direct injection engines, it can be used with any type of fuel injection. Max-Atomizer contains highly concentrated polyether amine (PEA) detergents that quickly clean clogged and coked injectors, restoring 100 percent of injector flow. This will optimize injector spray patterns and better atomize fuel as it enters the combustion chamber. Enhance power and performance with Royal Purple Max-Atomizer fuel injector cleaner. Performance advantages include: * Restores and improves fuel economy * Stabilizes ethanol, which chemically breaks down to cause harmful effects to an engine * Maximizes horsepower * Improves responsiveness * Smoother idle * Quicker, easier starts * For use in both gasoline and diesel engines * Recommended for all ethanol blends * Reduces emissions, but will not harm vehicle emissions equipment * EPA / CARB compliant
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$47.88
Royal Purple Max-Restore High Mileage cleaner is a highly concentrated, high performance fuel treatment that is specially formulated to solve performance problems typically found in higher mileage vehicles. It restores fuel economy, extends engine life, lowers emissions, and delivers maximum cleaning power. Max-Restore contains a high dose of polyether amine (PEA) and proprietary detergents that quickly clean stubborn, long-term deposits often found in high-mileage engines and provides a protective barrier to keep new deposits from forming. This optimizes the injector spray pattern and better atomizes fuel as it enters the combustion chamber, resulting in enhanced power and performance, reduced emissions, smoother idle, and quicker/easier starts. It also utilizes a friction modifier to reduce wear in the upper cylinder to help extend engine life and improve fuel economy.
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$45.59
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