I know a farmer/contractor that uses Delo 30wt in
everything. He has 7 or 8 detroit 60,s and 9 or 10
JD tractors of various sizes. He uses it in his
F150 and F350 P/U,s and his personal autos. He tells me
multi grade is not required in the mild weather
we have in the San Joaquin valley. None of...