Anybody using 0w20 weight synthetic oil?
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Rookie
Joined: Jul 2009
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Anybody using 0w20 weight synthetic oil?
Who's using 0w20 weight synthetic oil in a 5.9 gas engine? It's time to change the oil before we go 1200 miles from Fla to Pa and then back again. I've got 89,000 mostly low rpm miles on it. I'd like to use 0 weight if it won't cause any problems. I drive about 50/50 city highway, 10 mile to work and 10 miles back. It gets warmed up about 2 or 3 miles into the trip. I NEVER tow, don't even have a hitch. No off-roading, either. I only drive about 5 to 6 thousand miles in most years. I( guess that's going out the window this year. Gotta love a good road trip. (Now if I could just get a volume control for the kids...........)
So what do you think?
Edit: Who thinks I'll see an increase in MPG?
So what do you think?
Edit: Who thinks I'll see an increase in MPG?
Last edited by Gasnmyveins; May 31, 2010 at 03:30 PM.
Legend
Joined: May 2005
Posts: 8,663
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From: Central Oklahoma
The recommendation is 10W40. I wouldn't go any thinner.
http://theserviceadvisor.com/Viscosity.shtml
http://theserviceadvisor.com/Viscosity.shtml
Once the engine is running, the oil heats up. The second number in the viscosity rating--the "40" in 10W-40, for example--tells you that the oil will stay thicker at high temperatures than one with a lower second number--the "30" in 10W-30, for example. What's really important is that you use the oil viscosity your car's owner's manual recommends.
Last edited by Gary-L; May 31, 2010 at 04:51 PM.
Administrator
Joined: Apr 2010
Posts: 87,468
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From: Clayton MI
Go with the 10w30. Its summer. The lighter weight when cold thing isn't gonna help you much, and the lubricating properties of lighter weight oil won't do you any favors in the realm of engine wear...... Keep in mind, it dosn't get is full "30 weight" properties until around 210 degrees. (oil temp)
Legend
Joined: May 2005
Posts: 8,663
Likes: 8
From: Central Oklahoma
Never, ever in a V8.
