I'm In a car engines oil disagreement with a club member and friend .
Isn't a zero weight for very cold temperature sates or country's and a 5 weight is for warmer states ,really why did the introduce a zero weight oil 0 W 20 or 0 W 40 and a 5 W 20 or 5 W 40
Isn't a zero weight for very cold temperature sates or country's and a 5 weight is for warmer states ,really why did the introduce a zero weight oil 0 W 20 or 0 W 40 and a 5 W 20 or 5 W 40