ILOVEGIRLS

iTrader: (3)

do you guys think its ok to run 0w 30 mobil 1 in the engine instead of 5w 30?

Indio

iTrader: (1)

Why would you want to? 5W30 flows quickly in cool or cold weather.

BLK98GS3

0w30 is usually used to flush the engine. It is not safe to drive with it.

FunGuy

You only need to run 10w30 if your engine burns oil, usually witht the higher mileage cars. GSs dont need an oil that viscous because they simply dont burn oil like every other car out there. So no.

blacksc400

iTrader: (4)

I use 10-40W since I rev it up all the time/

JellyBean

I don't think that it directly answered your question, but the February 2006 Road & Track's Technical Correspondence section appears to say "YES":

"0 Weight Oil

I recently acquired a 2003 Ford Focus ZX3 with the 2.0-liter dohc engine. Ford calls for 5W-20 oil.

The other day at the auto parts store I saw Mobile 1 oil for sale that was listed as 0W-20. It also claimed to be "specially formulated for Ford and Honda engines calling for 5W-20." How can any oil be rated at zero and what does this really mean?
Kris Hilscher
Apex, North Carolina

Oil weight ratings are set using published procedures, with the typical main variables being the oil's temperature and the time it takes to pass through an orifice of a given size. This is not to overlook an almost bewildering number of other tests to determine volatility, pour points, rust resistance and on and on.

In a multi-viscosity oil, such as 5W-20, the second number, 20 in our example, is the oil's viscosity at 100 degrees Celsius. The first, or "W" rating is not really a viscosity, but rather a relative number designed to illustrate the oil's flow and resistance characteristics at low temperatures. It is determined by rating several other test results, with the idea of illustrating the amount of resistance the oil will exhibit when cranking an engine in winter temperatures. In casual terms this number can be thought of as a "winter" viscosity, and used to compare the relative merits of two oils; but it is not a true viscosity and the number is not determined by pouring it through an orifice. Therefore the "W" number could be quite low, including 0."

BLK98GS3

0w20 and 0w30 are two different oils. He asked if it was ok to run 0w30 instead of 5w30.

I know that it is ok to run 0w30 in newer cars. My friend used 0w30 in his 2003 honda accord, but its only ok if you have low miles.

LexT

Iam running Mobil1 0-30, no issues.

Chpsk8

It would be fine.
The first number in the rating is the oils ability to flow when cold. The smaller the number the easier it is to flow.
My question would be why you would want to do it? It can't be too terribly cold in CA. 0 rating oils are more common where I live where tempratures drop into the sub zeros's for extended periods of time.

Bottom line, you aren't going to hurt anything.

SRK

Chpsk8 is correct. The first number is the oils viscosity at a test temperature of 0 celcius/ -18 F, and the second is the viscosity at 100 C, or 210 F. This is the test as set forth by the SAE.
As oils changed over the years, the arbitrary numerical values set way back when failed to predict a future where oils of a low viscosity would be required, and therefore the 0 rating has been assigned, as strange as it sounds. Here in Canada 0 weight oils have been used for some time in the far north, in some very large diesels too. It is a perfectly fine viscosity for low temperature operation. Certainly the SECOND number of a multi-grade oil should not be 0, but for the first, it is just fine.