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Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Shocks & Struts, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, Chassis, CV Axles, Batteries, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Outdoor Lifestyle, Towing, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 9/24/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

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Mobil 1  15W-50 Motor Oil, 1-Quart 14025
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  • Part #: 122377|
  • SKU: 14025

Available today

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    • Helps prevent deposits and sludge buildup to enable long engine life
    • Excellent overall lubrication and wear protection performance for many driving styles

Mobil 1 15W-50 Motor Oil, 1-Quart

Mobil 1 15W-50 synthetic oil meets or exceeds the requirements of the industry and car manufacturers’ standards required for high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel-injected engines. It is especially suited for a wide variety of motorsports applications, towing and other severe service situations. It is designed to help provide exceptional wear protection for a smooth driving experience. Mobil 1 15W-50 is a winning, race-proven technology. Mobil 1 15W-50 synthetic motor oil helps provide outstanding motor oil performance and protection for the winning edge. The Mobil 1 brand is the official motor oil of NASCAR®. It is made with a proprietary blend of ultra high performance synthetic basestocks fortified with a precisely balanced component system. Mobil 1 15W-50's heavier viscosity, together with this high-performance component system, helps provide the ultimate in dynamic lubricant protection. This feature is supported, not only by meeting or exceeding the toughest industry performance standards, but also it is proven in gruelling racing applications.
  • Helps prevent deposits and sludge buildup to enable long engine life
  • Excellent overall lubrication and wear protection performance for many driving styles
  • Outstanding performance during the maximum oil change interval recommended in a vehicle’s owner’s manual
  • Extra protection for severe service
  • Advanced full-synthetic formula helps prevent deposits and sludge buildup for long engine life
  • Synthetic oil can last up to three times longer than conventional oil, resulting in fewer oil changes, saving you money
  • Check out our wide assortment of oil change tools and accessories, including oil filters, funnels, and oil drop pans
  • The Pep Boys Say: "Mobil 1 is the premium synthetic oil for drivers that want the best for their engines."

Oil Weight


Mobil 1 15W-50 Motor Oil, 1-Quart is rated 4.6 out of 5 by 5.
Rated 5 out of 5 by from 15W-50 I purchased a 1988 C 1500 ten years ago, the prior owners used Mobil 1 products when service came due. The engine has nearly 260K and runs like a new engine. I am meticulous about periodic maintenance on the truck, I put about 5000 miles a year on the truck and change the oil once a year, the oil has darkened but is still clean and very slick, not burned. I had to replace the fuel system due to a bad tank of gas about seven years ago. I had to take off the intake and took off the oil pan with the idea it would be a good time to clean it out with all those miles on it. To my surprise, the oil pan did not have any build up and looked new inside, I didn't have to clean it, I give the credit to the people at Mobil who have work hard and used their heads to make such a product and keep the company going, a personal thank you for your hard work and discipline
Date published: 2016-12-24
Rated 5 out of 5 by from Year Round Motor Oil This is a good year round motor oil. It is good for the winter as well as hot summer.
Date published: 2015-10-05
Rated 5 out of 5 by from The best oil for superior protection that lasts the test of miles Have done many experiments in a manufacturer laboratory and the Mobil 1 fully synthetic oil has reined as a top choice for motor oil. Even the fact that a new engine can perform a breaking procedure with it and has proven to make the engine more reliable is one major reason all my vehicles operate with mobile 1 full synthetic motor oil.
Date published: 2015-08-22
Rated 3 out of 5 by from Price is too high This oil along with the mobil 1 esp 5w30 I purchace for my Volkswagen is priced way too high I can get castrol vw507.00 rated oil at the dealership for $9 a liter vs the 13 for the mobil 1 ESP 5w30 at pep boys.
Date published: 2014-08-20
Rated 5 out of 5 by from Mobil 1 15-50 Great oil for old 1968 dodge 340 engine. Best oil for the old cam and lifters without adding zinc.
Date published: 2014-07-16
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