Quote:
Originally Posted by Gunkk
FWIW, the Mobil1 0w40 has higher viscosity than 5w30 when cold (and warm).
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Not sure what you mean on that statement, but 0-40 flows like 0 weight oil when cold and has the protection of 40w oil when hot. O weight oil flows better when cold than 5w oil and I would think 40w oil has more viscosity or thicker than 30w oil when hot