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babs1966
06-09-2011, 11:03 PM
I have a 350 lt1 and am looking all over for 15w40 motor oil all I can find is diesel motor oil in that grade, also is synthetic oil recommended. I need the oil for both the engine nd the tranny.

bigmac
06-10-2011, 08:50 PM
I have a 350 lt1 and am looking all over for 15w40 motor oil all I can find is diesel motor oil in that grade, also is synthetic oil recommended. I need the oil for both the engine nd the tranny.

Yes, it's an oil that was formulated for diesel engines. Don't worry, it's the same stuff.