^^ ive had over 100 and sumthin cars and always used 10w40 synthetic and never had a problem and im sure you all see what i do to these cars with the big a$$ rims lol
10w-40 is too thick for newer engines. The celerances are too tight.
01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
SMGPFC Two Nipple General
^^b.s ive used it for decades never had a motor go on me and i put a whoopin on them with my rims, it recomends 10w30, 10w40 a hair thicker better protection