[diesel]

Which oil gives you the best mileage if there is a difference for you.
Thanks.

I didn't really notice any meaningful difference between the three. I personally think Amsoil is the best choice.

 

[oilburner]

Has anyone tried a 5W40? Curious what the results were. I doubt it'd be much but may have less noise with a thicker coat.

been using amsoil 5w40 since new, 3 years an no issues.