hi, i know you might have meant newer ones like yours, but i will give my two cents worth. when the 8v92 was put into service in bus's and dumptruck and over the road trucks, they didnt run synthetics. or i believe few of them did.
so....i run good old regular oil and tranny fluid. my bus shop recommends it and it had it in before i bought it and that is what i will do.
my two cents worth and i know i will get disagreed with on it.
happy tuesday (thats what it is here in tel aviv where i am today)
tom
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