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But hey, its annoying when people say that.


Ill give you a good answer.



Delo 400 15-40

Thats what I run.

(Flame suit on)

I personaly wouldnt use synthetic, if I could afford it. When they designed my engine they had dino oil in mind. Plus I have yet to find synthetic diesel motor oil (as in 15-40)

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1981 300SD 512k OM603