My car asks for 5w30. Are you telling me that I cant use a 0w-40 oil in it. I was thinking of using 0w-40 XD3 for year round. Both on my 01 Celica and 99 Sunfire GT?? I guess I could try blending it with a 5w-30 Dino.
If your car asks for 5w30, you should probably run Esso 0w30 xd3 if you want to run Esso diesel oil. A 40 weight might be a little thick for a passenger car that runs a 30 normally. Any others have ideas?
I second the 0w30. I use it in year-round in 4-6 cylinder gas engines with no issues. The 0w40 probably wouldn't hurt anything except maybe fuel mileage but there's just no reason to use it since the 0w30 is available.