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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
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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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$146.69
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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
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