Hero image 0 of Castrol GTX Diesel Protects Against Wear Deposits Motor Oil 15W-40, 1 Gallon, 0 of 9
Castrol GTX Diesel Protects Against Wear Deposits Motor Oil 15W-40, 1 Gallon
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Key item features
- Engine Protection: Protects against oil thickening and deposit build-up in critical engine parts, guarding against wear and deposits for reliable engine protection.
- Viscosity Stability: Provides better shear stability and protection against viscosity loss, maintaining consistent engine performance.
- Versatile Application: Ideal for use in mixed fleets, enabling product rationalization for workshops and lowering stock costs.
- Advanced Formulation: Conforms to the strict requirements of PC-11 engine oil technology, suitable for diesel engines requiring API CK-4, CJ-4, and below.
- Broad Compatibility: Can be used in a wide variety of heavy-duty, commercial vehicles and pickup trucks.
- Engine Cleanliness: Specially formulated to keep the engine cleaner, contributing to prolonged engine life.
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Specs
About this item
Product details
Specifications
Directions
Compatible vehicles
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 2021 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2021 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2021 | Chevrolet | Silverado 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2021 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2020 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2020 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2020 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2019 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2019 | Chevrolet | Silverado 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2019 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2018 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2018 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2017 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2017 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2016 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2016 | GMC | Savana 2500 | All Submodels | V8 6.6L 6599cc |
| 2016 | Chevrolet | Silverado 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2016 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2016 | Chevrolet | Express 2500 | All Submodels | V8 6.6L 6599cc |
| 2015 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2015 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2015 | GMC | Savana 3500 | All Submodels | V8 6.6L 6599cc |
| 2015 | Chevrolet | Express 3500 | All Submodels | V8 6.6L 6599cc |
| 2014 | Chevrolet | Express 3500 | All Submodels | V8 6.6L 6599cc |
| 2014 | Chevrolet | Express 2500 | All Submodels | V8 6.6L 6599cc |
| 2013 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2013 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2013 | GMC | Savana 3500 | All Submodels | V8 6.6L 6599cc |
| 2013 | GMC | Savana 2500 | All Submodels | V8 6.6L 6599cc |
| 2013 | Chevrolet | Express 3500 | All Submodels | V8 6.6L 6599cc |
| 2013 | Chevrolet | Express 2500 | All Submodels | V8 6.6L 6599cc |
| 2012 | GMC | Sierra 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2012 | GMC | Savana 3500 | All Submodels | V8 6.6L 6599cc |
| 2012 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2012 | Chevrolet | Express 3500 | All Submodels | V8 6.6L 6599cc |
| 2012 | Chevrolet | Express 2500 | All Submodels | V8 6.6L 6599cc |
| 2011 | GMC | Sierra 3500 HD | All Submodels | V8 6.6L 6599cc |
| 2011 | GMC | Savana 3500 | All Submodels | V8 6.6L 6599cc |
| 2011 | GMC | Savana 2500 | All Submodels | V8 6.6L 6599cc |
| 2011 | Chevrolet | Silverado 2500 HD | All Submodels | V8 6.6L 6599cc |
| 2011 | Chevrolet | Express 3500 | All Submodels | V8 6.6L 6599cc |
| 2011 | Chevrolet | Express 2500 | All Submodels | V8 6.6L 6599cc |
| 2010 | GMC | Savana 3500 | All Submodels | V8 6.6L 6599cc |
| 2007 | Dodge | Ram 2500 | All Submodels | L6 5.9L |
| 2006 | Hummer | H1 | All Submodels | V8 6.6L |
| 2006 | Dodge | Ram 3500 | All Submodels | L6 5.9L |
| 2005 | Dodge | Ram 2500 | All Submodels | L6 5.9L |
| 2004 | Hummer | H1 | All Submodels | V8 6.5L |
| 2004 | Dodge | Ram 2500 | All Submodels | L6 5.9L |
| 2003 | Hummer | H1 | All Submodels | V8 6.5L |
| 2003 | Ford | F-350 Super Duty | All Submodels | V8 7.3L |
| 2003 | Ford | F-250 Super Duty | All Submodels | V8 7.3L |
| 2003 | Ford | Excursion | All Submodels | V8 7.3L |
| 2003 | Ford | E-350 Super Duty | All Submodels | V8 7.3L |
| 2003 | Dodge | Ram 3500 | All Submodels | L6 5.9L |
| 2003 | Dodge | Ram 2500 | All Submodels | L6 5.9L |
| 2002 | Hummer | H1 | All Submodels | V8 6.5L |
| 2002 | Ford | Excursion | All Submodels | V8 7.3L |
| 2002 | Ford | E-350 Super Duty | All Submodels | V8 7.3L |
| 2001 | Ford | F-350 Super Duty | All Submodels | V8 7.3L |
| 2001 | Ford | F-250 Super Duty | All Submodels | V8 7.3L |
| 2001 | Chevrolet | Express 3500 | All Submodels | V8 6.5L |
| 2001 | Chevrolet | Express 2500 | All Submodels | V8 6.5L |
| 2001 | AM General | Hummer | All Submodels | V8 6.5L |
| 2000 | Ford | Excursion | All Submodels | V8 7.3L |
| 2000 | Chevrolet | Express 2500 | All Submodels | V8 6.5L |
| 2000 | AM General | Hummer | All Submodels | V8 6.5L |
| 1999 | Ford | F-350 Super Duty | All Submodels | V8 7.3L |
| 1999 | Ford | F-250 Super Duty | All Submodels | V8 7.3L |
| 1999 | AM General | Hummer | All Submodels | V8 6.5L |
| 1998 | Chevrolet | Express 2500 | All Submodels | V8 6.5L |
| 1998 | Chevrolet | C1500 | All Submodels | V8 6.5L |
| 1998 | AM General | Hummer | All Submodels | V8 6.5L |
| 1997 | Chevrolet | Express 2500 | All Submodels | V8 6.5L |
| 1997 | AM General | Hummer | All Submodels | V8 6.5L |
| 1996 | AM General | Hummer | All Submodels | V8 6.5L |
| 1995 | AM General | Hummer | All Submodels | V8 6.5L |
| 1994 | AM General | Hummer | All Submodels | V8 6.5L |
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Showing 1-3 of 12 reviews
Jun 25, 2026
Reviewer name: WalmartCustomer
Item details
Size: 1 gal
5 out of 5 stars
Verified Purchase
Castrol motor oil
Great product been using in my vehicles for over 25 years oil stays clean and lines great .
Incentivized Review
Helpful?7EIXRXS49T2J142520388
May 10, 2026
Reviewer name: wendy
Item details
Size: 1 gal
5 out of 5 stars
Verified Purchase
happy customer
great 0rice for product
Incentivized Review
Helpful?7EIXRXS49T2J142520388
Jan 31, 2026
Reviewer name: Michael
Item details
Size: 1 gal
5 out of 5 stars
Verified Purchase
Good slippery oil
Good slippery oil what can I say
Incentivized Review
Helpful?7EIXRXS49T2J142520388
Current price is USD$21.9717.2 ¢/fl oz
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