kongmike wrote:i m using mobil 1 0w40.. y no one is using it? any reason?
I use it.
This oil one of the best kept secrets out there.It brackets the popular 5w-30 grade and can be used in applications that specify the 5w-30/10w-30A lot of people dont realize that and as a result dont run this oil.
A first there was a lot of sceptisism to an oil with such a wide viscosity spread (many will remember the varnish problems with SynTec 5w-50 for this very reason) but the base oil of the 0w-40 has such a hi built in viscosity index that excessive VII's are unneccesary to achive this multi-viscosity spread.
Also the 0w-40 grade is the same oil, MOBIL sells in Europe (not the case for all its other viscosities) which is another indicator of its quality, as that market is very demanding of oils
There are some UOA's out there, for Nissan engines with this oil and they look real good, which is why I switched from ValvolineSynPower 5w-40 (which is still a very good choice in many applications) to the MOBIL1 0w-40.
There is some of discussion on it, in some of the links I provided in my post above (even tho they are mostly older and from a time when those UOA's were unavavilable)
The post above includes our <original> oil poll as well.
Fred..
