10w-40

[95firebird]

ok so i posted about my oil leak a little while ago well im going to try and do it my self but that not going to be for a few weeks and im due for a oil change and the guy at auto zone said i should put 10w-40 so the oil leak wont be as bad what do yall think thanks

[stepho]

Its true. Its good to switch to 10w-40 for higher milage engines.

There isn't too big of a diffrence between the two, 10w-40 is just a little thicker.