: Mobil 1 0w-30 Oil... Any thoughts?



marcwsu
04-06-09, 02:07 PM
So I was picking up some oil today al Walmart and noticed a Mobil 1 weight I have never seen before. It is 0w-30. The bottle basically says to expect an average 2% increase in fuel savings. It said it was ok to use if your vehicle calls for 5w and 10w. It was the same price as the rest so it initially looks like a win win...

Any thoughts? I was a little skeptical because I didn't know if you could safely use a 0w oil in place of a 5w or 10w oil for your vehicle.

Spyke
04-06-09, 09:15 PM
oil in your engine has to meet gm4718m specs first. Secondly, depends of the weather, 0w30, 5w30 or 10w30, there should be no difference when the oil is warm to regular temperature. Only better flowing capacities below freezing. So, on highway ir city driving, there should be no difference.

0w, 5w or 10w or 20w stand for viscosity at lower temperature (w for winter btw) and the second number during fully warmed oil. So no difference between 0w30 and a 10w30.

edvanp
04-08-09, 12:13 PM
M1 0w-30 is a great oil as is the 0w-30 flavor from Castrol! Both get great reviews and the used oil analysis on both show they are very robust motor oils!

bond2
04-08-09, 12:58 PM
Been using it in my 2007 SRX N* for the past 10k miles without issue.

Darth Xed
04-08-09, 01:39 PM
Has anyone using this actually noticed a difference in MPG using 0w30?

Also, what is the risk being taken here by going to 0w30 vs 5w30? I assume something HAS to be different, otherwise why not factory fill with the 0w30 over the 5w30??

bond2
04-08-09, 03:16 PM
The Shop that changes my oil stopped carrying mobil 1 5w30 for some reason, but they had a nice writeup from Mobil on 0w30. So I've been using it in my Pontiac Trans Am 5.7L LT1 V8 and the N*. I can't really say the mileage is any better than the 5w30, but it seems to hold up just as well. Outside temperatures have been as low as 5 degrees and as high as 75 degrees. This summer will be a good test of warm weather performance.

http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_1_0W-30_Advanced_Fuel_Economy.asp

SRT ACE
04-09-09, 09:47 AM
Has anyone using this actually noticed a difference in MPG using 0w30?

Also, what is the risk being taken here by going to 0w30 vs 5w30? I assume something HAS to be different, otherwise why not factory fill with the 0w30 over the 5w30??

The 0w-30 will flow better during colder temperatures. When up to operating temperatures both will function the exact same.