A: Castrol always recommends following the guidelines of the original engine manufacturer for the recommended grade and API specific to your application. This information can be found in the owner's manual of the generator or by contacting the manufacturer directly. Castrol GTX Diesel 15W-40 CK-4 is suitable if the generator runs on diesel and calls for a 15W-40 motor oil meeting API CK-4 or prior diesel rating. Castrol GTX Diesel 15W-40 CK-4 is not recommended for use in gasoline applications.
A: Greetings Phil! Thank you for your interest in the Castrol GTX 128 oz. 15W-40 Diesel Motor Oil. To check availability in your area, follow these steps: 1. Localize the Home Depot website to you area (You're Shopping). 2: Enter your local zip code [Find Other Stores] 3: Select the store that you would like to shop (Make this your store] 4: Enter the item that you would like to search for. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
A: Castrol GTX Diesel 15W-40 is a conventional diesel motor oil. It does not contain any synthetic.
5
20
4
1
3
0
2
0
1
0
![]() | current product ![]() | ![]() | ![]() | |
Brand | Castrol GTX | Castrol GTX | CASTROL | CASTROL |
Name | 32 oz. GTX Conventional 10W-30 Motor Oil | 128 oz. 15W-40 Diesel Motor Oil | GTX Ultraclean 5W-30 Synthetic Blend Motor Oil 160 fl. oz. | 160 fl. oz. 10W-40 Motor Oil |
Price | $697 | $1598 | $2497 | $2497 |
Ratings | (9) | (21) | (57) | (35) |
Viscosity Grade | 10W-30 | 10W-30 | 5W-30 | 10W-40 |
Automotive Part Type | Engine Oil | Engine Oil | Engine Oil | Engine Oil |
View Product | View Product | View Product | View Product |
Explore More on homedepot.com
How can we help?
Provide Feedback