Quote:
Originally Posted by BillGrissom
I understand that "diesel oil" (CJ rated) has more detergents to better suspend carbon between changes. Oil gets black much faster because of more leakage past the rings at 20:1 compression, and the fuel droplets burn as a sootier "diffusion flame" rather than the ideal "pre-mixed flame" in a gas engine (assuming fine atomization/evaporation and mixing).
Many owners of classic gas cars use diesel oil like Rotella. They consider it better quality and the added zinc helps w/ flat-tappet cams, especially those using racing cams w/ stronger valve springs. Diesel oil used to cost more. Be happy. The fuel is even cheaper than gas currently.
|
^^^^^^^
This
__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
********************
1979 240D 140Kmiles (bought for parents)  *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD
|