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Has an exceptionally high film strength for dramatic reductions in engine wear and reduced engine heat to extend the life of your engine, Offers outstanding wear protection for valve train components, Features improved sealing between the piston ring and cylinder wall, The exceptional stability extends oil life and allows for more miles driven between oil changes, Addition of advanced synthetic solvency reduces engine deposits and keeps engines clean Royal Purple HPS 10W40 High Performance Engine Oil, 6 Quart Case Sku # 29636140 Mfr. Part # 36140 Condition New Brand Royal Purple Sold Box Details Info HPS is recommended for use in gasoline and diesel automotive, commercial fleet and stationary industrial engines. Royal Purple® HPS® Series Motor Oil (with Synerlec®) 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. 10W40 6 Quarts PERFORMANCE ADVANTAGES Exceptionally high film strength for dramatic reductions in engine wear and reduced engine heat to extend the life of your engine Improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy Exceptional oxidation stability extends oil life and allows for more miles driven between oil changes saving you time and money Advanced synthetic solvency reduces engine deposits and keeps engines clean Outstanding wear protection for valve train components, including performance roller lifter and high lift flat-tappet camshafts and lifters Superior corrosion protection Specs Sold in Quantity Each Fuel Type Gasoline Oil Weight 10W40 Oil Type Synthetic ZDDP Enhanced Yes Liquid Measurement 6 MFG. Part # 36140 Reviews Recommended 1 year between oil changes, I just went 2 years! Rated by chilly willy on December 23, 2021 Summary: Was running 10W40 during the winter and 20W50 during the summer while pulling a 16 vintage trailer. Oil temp stayed low so tried 10w40 year round 10W40. Missed an oil change, yet not problems. This is a 500+ hp 383 10.5 comp AFR heads, 256 degree Howards solid flat tappet cam, Edelbrock tunnel ram and twin 450 Holleys. Shift it at 6500 rpm pretty regular, yet the rockers rarely need adjustment. Oil must be doing its job. Yes, I recommend this product. Love Royal Purple Rated by Jess on November 18, 2020 Summary: Use this oil for my Ka-T 240sx for the track and it works great and gives piece of mind when running the car. Yes, I recommend this product. Great product for turbocharged engines! Rated by JT on November 14, 2020 Summary: Used product for SR20DET turbocharged engine, runs smoothly on Royal Puple! Yes, I recommend this product. I would buy this product again Rated by Bimmerman on October 26, 2020 Summary: I would buy this product again Related Items / Suggested Parts AbellTek Eco-Loop Spill Proof Funnel Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.