manual specs 5w-30, german stuff is 0w-30. What exactly does the 0w vs 5w mean? Supposedly the 0w means better cold performance, but does that mean the oil is physically thinner or thicker than 5w when cold?
Also, I've skimmed several posts that says the german stuff is very thin and is realistically closer to a 40W. Will this be a problem for this application? I've used 5w-30 castrol GTX the entire life of this car. 2000 prizm (mechanically identical to corolla), 50k miles.
My dad thinks I'm running a risk switching motor oils, and he's kind of my mentor since I'm still learning cars.
[ July 16, 2003, 02:54 AM: Message edited by: outersquare ]
Also, I've skimmed several posts that says the german stuff is very thin and is realistically closer to a 40W. Will this be a problem for this application? I've used 5w-30 castrol GTX the entire life of this car. 2000 prizm (mechanically identical to corolla), 50k miles.
My dad thinks I'm running a risk switching motor oils, and he's kind of my mentor since I'm still learning cars.
[ July 16, 2003, 02:54 AM: Message edited by: outersquare ]