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25% Off All Online Orders of Select Parts and Accessories
Receive 25% Off Your Online Purchase. Use promotional code 25PEP 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 12/12/16. Online orders scheduled for in-store pick up must be completed by closing on 12/11/16 for discount to apply.

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140_46_03107C
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  • Part #: 03107C|
  • SKU: 311584

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    • Ultra-low friction helps improve gas mileage* (* In 5W-20, 5W-30 and 10W-30 grades).
    • Motor oil provides the highest North American standard of protection against viscosity breakdown.
Retail
$25.99
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Castrol GTX 5W-20 Conventional Motor Oil, 5.1 Qt.

Castrol GTX actively protects against particles that build up in car engines with the most advanced deposit fighting ingredients. Choose Castrol GTX for your next oil change.
  • Ultra-low friction helps improve gas mileage* (* In 5W-20, 5W-30 and 10W-30 grades).
  • Motor oil provides the highest North American standard of protection against viscosity breakdown.
  • Castrol GTX offers unsurpassed protection against thermal breakdown of leading oils.
  • Designed with custom-made additives
  • Attracts, captures, and disperses particles that can cause sludge build-up.
  • Check out our wide assortment of oil change tools and accessories, including oil filters, funnels, and oil drop pans.
  • Oil changes at regular intervals help keep your engine running cleaner and improve the life expectancy of your car.
  • The Pep Boys Say: "Castrol GTX is a trusted, well-known brand that will meet or exceed your engine's needs."
  • The Pep Boys Say: "Castrol GTX is a trusted, well-known brand that will meet or exceed your engine's needs."


Type
CONVENTIONAL
Oil Weight
OIL_5W20

311584

Rated 4.7 out of 5 by 22 reviewers.
Rated 5 out of 5 by never any sludge been using castrol for about 10 years and i have never seen any internal black sludge or even a hint of burnt oil on internal parts October 17, 2015
Rated 4 out of 5 by Always used Castrol oil. Very good. Waiting for my $10.00 rebate. September 29, 2015
Rated 4 out of 5 by Great oil Have used this oil for years in my parents car as, as well as mine before I started to use full synthetic. It is a great oil to use. Just make sure you use the correct viscosity. As an FYI Pep Boys usually has a oil and filter sale with Castrol every other month or so. August 4, 2015
Rated 4 out of 5 by Goood Excellent June 20, 2015
Rated 4 out of 5 by good oil I use this oil and keep an extra for when it's time for a oil change. never an issue. June 14, 2015
Rated 5 out of 5 by Castrol reported as best Motor Oil Never a problem with Castrol Motor Oil June 11, 2015
Rated 5 out of 5 by excellent product and a good price at Pep Boys easy to use, first time in the big jug but makes filling and disposal easy. April 19, 2015
Rated 5 out of 5 by this oil is just great I have used this oil on my 07 Camry for 8 years now and I have no complaints, it keeps the engine clean and protected. with 91,000 miles on my Camry engine and still rides like a new car. January 9, 2015
Rated 4 out of 5 by good product this product work good for my car December 28, 2014
Rated 4 out of 5 by very good quality excellent product December 26, 2014
Rated 5 out of 5 by castrol motor oil this was a great holiday deal, wish I saw this deal thru out the year. December 19, 2014
Rated 5 out of 5 by Great product Excellent value, great product December 9, 2014
Rated 5 out of 5 by Dependable I have been using Castrol GTX since I bought my first car in 1973. I was using the oil and I decided to do a valve job. I took the manifold off and the oil galley was spotless. I had a 1988 Chevy 3/4 ton truck and the engine lasted to 222,000 miles for a 454 big block Chevy. I drive a 2001 Chevy Malibu with 242,000 miles on the engine with only replacing the water pump. The engine doesn't burn any oil and still gets 28 miles to the gallon of gas. Gary Ormsby and John Force were sponsored by Castrol! November 28, 2014
Rated 5 out of 5 by 5 quarts and oil filter combo I brought 5 quarts and a fram oil filter in a combo... August 18, 2014
  • 2016-12-10 T09:50:54.218-06:00
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