Someone help me out. What is a really good oil to run in an old 80's diesel?
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Someone help me out. What is a really good oil to run in an old 80's diesel?
Rotella T 15W40
Castrol 15W40
Any non synthetic 15W-40 will work fine.
Another vote for Rotella.
filter it and add it 50/50 to your fuel...
Mobil delvac 15w40
Rotella is what i run in all the fleet equipment.
Rotella.
Just out of curiosity what are you running? a 6.2 GM? I had the infamous 5.7 Olds diesel DX block in a very clean cutlass. I also ran 15/40 in it. I run 15/40 in my 350 gas truck also, just because its free.