Great to hear your car is working good.
The 10w is the viscocity (pouring weight; thickness) of the oil, and the 40 is the molecular strength. So I don't even see a need to use 10w-30.
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Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
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