Hey MrNickleye!

mrnickleye · 08-17-2006, 05:23 AM

10w-40 is fine. It will flow easier in the winter, as your engine will be running cooler. I would use 20w-50 in the winter only if your car burns or leaks a lot of oil. That would slow it down.

Some new cars are using 5w-30 oil, for 2 reasons.
1) because of higher emmision standards
2) tighter clearances in the engine.

If you check out an owners manual for any car (and mine was still available at Toyota, $15), you will find oil specs requirements listed for different temp ranges.

I believe 10w-40 is acceptable for everything from 20* to 90*F for most cars.

08-17-2006, 05:23 AM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	10w-40 is fine. It will flow easier in the winter, as your engine will be running cooler. I would use 20w-50 in the winter only if your car burns or leaks a lot of oil. That would slow it down. Some new cars are using 5w-30 oil, for 2 reasons. 1) because of higher emmision standards 2) tighter clearances in the engine. If you check out an owners manual for any car (and mine was still available at Toyota, $15), you will find oil specs requirements listed for different temp ranges. I believe 10w-40 is acceptable for everything from 20* to 90*F for most cars. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.