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Royal Purple break-in oil is designed for the engine builder who has grown increasingly concerned that current engine oils that are API licensed for new cars and trucks do not provide adequate wear protection for their freshly built performance engine, particularly those using flat tappet camshafts and lifters. Royal Purple break-in oil is formulated to provide the critical wear protection needed by the engine valve train and camshaft while allowing new piston rings to quickly seat to the engine cylinder walls. Royal Purple break-in oil combines highly refined mineral oil (preferred for engine break-in) with an advanced additive package containing elevated levels of zinc/phosphorus anti-wear additive to optimize wear protection during the sensitive engine break-in phase. Royal Purple Break-In Oil is a fully formulated conventional 10W-30 engine oil and does not require the use of any other chemical additives. Royal Purple recommends using Royal Purple break-in oil for a minimum of 500 to 1,000 miles in street driven gasoline engines to assure that the complete ring break-in has been completed before switching to one of their full synthetic engine oils. If need be, you can use for up to 2,500 miles.
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$10.99
$9.89
Royal Purple HPS High Performance Series motor oil is specifically formulated to maximize performance and meet the demands of high performance and modified engines. HPS is recommended for vehicles no longer under manufacturer warranty and for those seeking a higher level of performance and protection. Royal Purple HPS oils are fortified with a high level of zinc/phosphorus anti-wear additive and a generous dose of Royal Purple's proprietary Synerlec additive technology. These unique formulations enable HPS oils to outperform leading synthetic and conventional lubricants in both gasoline and diesel engines.
( 300 )
$9.99
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$192.99
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.
( 67 )
$28.99
$26.09
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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$44.99
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$110.99
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