Don W wrote in
:

There is a lot more pressure on the rod and main bearings in a diesel
because of the higher compression.


The new C-2 and C-4 ratings for 2 and 4 stroke diesels have to do with what
type of detergent is put in the oil to keep the carbon blowby from
destroying it. The detergents in the old gas oils couldn't pass the tests,
so SAE forced them to remove the old CD or CE, etc., ratings from the super
cans with the checkered flags on them. Car oil has an S rating only if you
take a look at it, now. NEVER use these oils in ANY diesel engine.....

Reminds me of Wolf's Head....(c;