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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

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30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 10/27/16. Online orders scheduled for in-store pick up must be completed by closing on 10/26/16 for discount to apply.

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  • Part #: 53520 |
  • SKU: 844378

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    • API/ ILSAC Licensed for warranty compliance
    • Synthetic base oils provide a low coefficient of friction for increased performance
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Royal Purple SAE 5W20 Full Synthetic Engine Oil, 5 Qt.

Royal Purple’s API-licensed Motor Oil combines premium base oils with proprietary additive technologies to create high performance motor oils that optimize engine performance. Royal Purple’s API-licensed motor oil delivers superior protection and improves performance in gasoline and diesel engines. Royal Purple’s API-licensed SN motor oil meets ILSAC GF-5 and Dexos1™* performance requirements. No special procedures are necessary when upgrading to Royal Purple. Royal Purple recommends waiting until the manufacturer’s first scheduled oil change in new gasoline and diesel engines before upgrading to Royal Purple. Royal Purple motor oil is compatible with synthetic and conventional motor oils. Available viscosities include: 0W-20, 0W-40, 5W-20, 5W-30, 5W-40, 10W-30, 10W-40, 15W-40 and 20W-50 weights. Royal Purple also offers mono-grade motor oils in SAE 30, SAE 40 and SAE 50 weights. Performance Advantages Better wear protection Enhanced additive technology prevents metal-to-metal contact beyond both dexos1™* and ILSAC GF-5 specs Increased fuel efficiency A low coefficient of friction results in optimized fuel efficiency (the fuel economy of our 5W-30 meets the fuel economy requirements of a 5W-20 oil) Better protection of the expensive catalytic emission system Patented ZDDP additives optimize emissions catalyst system life Improved compatibility with fuels containing ethanol Patented additive technology prevents the white sludge and lubrication starvation that can occur with 20% or higher ethanol fuel Superior corrosion protection No rust observed in standard industry testing *dexos1™ is a registered trademark of the General Motors Corporation.
  • API/ ILSAC Licensed for warranty compliance
  • Synthetic base oils provide a low coefficient of friction for increased performance
  • Robust additive technology exceeds API/ ILSAC/ dexos standards


Rated 5 out of 5 by 8 reviewers.
Rated 5 out of 5 by performs great worth every penny October 10, 2016
Rated 5 out of 5 by Great oil great price Only oil I run in my truck, high rpms for long periods of time and motor is till going strong at 100k miles September 2, 2016
Rated 5 out of 5 by Purple Great oil. Had sluge and dealer says new engine. Hmmm. Found out this oil will dissolve sluge. Used it removed the valve covers and sluge is gone. Increased my gas mileage also. Good stuff September 2, 2016
Rated 5 out of 5 by This product is excellent Best price and service in the store, Hatillo PR August 21, 2016
Rated 5 out of 5 by great product I have been using this since my first oil change. I changed oil at 7500 Mi. as recommended by Kia. Since my warranty has expired, I now change oil at 12000 mi> like Royal Purple says I can. I have driven more than 150000 trouble free miles. I am looking for Royal Purple to make a high millage version of the 5W20 oil that I use. I am usually able to buy this when pep boys has a special promotion. July 26, 2016
Rated 5 out of 5 by The ONLY oil to use!!! I drive a high performance Mustang GT. Royal Purple has been outstanding under some grueling driving experiences. It's the only oil to use in a High Performance car. PS: I also use it in my 2016 Ford Escape 1.6L Eco-Boost!!! October 14, 2015
Rated 5 out of 5 by Royal Purple Royal Purple is the best synthetic oil ever. I have used this oil in my 07 Toyota Tundra since the first oil change. I get better fuel economy, once a year oil change. Saves fuel, save the planet,No oil! I have installed the synthetic in both my differentials. I swear! August 14, 2015
Rated 5 out of 5 by Great Oil I've been using Royal Purple for the last seven years in all my cars. Although this is a 15,000 mile oil, I do change the oil every 7,500 miles due to heat and stop and go driving. The oil has never let me down. My car is rated at 23 MPG Highway, but with this oil I an consistantly getting 25+ MPG of regular gasoline. July 27, 2015
  • 2016-10-24 T09:26:34.253-05:00
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