Join Date: Mar 2009
Location: Northeast Ohio, In the Lake
10w30 and 5w30 is the same after they are warmed up.....
5w30 is thinner in cold weather.
The first number is the Winter viscosity and the second is Summer...
The important thing to keep in mind is that a 0W30, 5W30, 10W30, and even a straight SAE 30 are all going to be the same thickness at operating temps.
Daily Driver, 13', LFX, 6L50, 1LT, Summit White (GAZ) Camaro, [email protected]
Weekend Racer, 99', LD9/LG0/W41, 4T40E, Aquamarine Z24, Rebuild/upgrade In-Process, 13s here I come