sae-30 non-detergent
I use 15w40
Yes, you can mix conventional oil with synthetic oil with no problem.
10W40 or 15W40
15w40
A diesel engine would use 15w40 a gas engine could use 15w40 or 10w40
I use 15w40
15w40
Unless otherwise specified by the owners manual, SAE 30 is a good weight oil.
12 quarts of 15w4012 quarts of 15w40
No, absolutely not. Use SAE 10w30 high detergent oil. Non-detergent oil will destroy the engine.
Yes, I used it today.