Mobil 1 Oil

[328I99E46]

JUST TRYING TO FIGURE OUT WHATS THE BEST ENGINE OIL ... 328I I USE MOBILE 1 0W40 BEEN TOLD 5W40 IS BETTER OR 5W30 WHAT U GUYS THINK AND USE ???

[AIO]

I use Castrol Formula SLX 0W-30 upon BMW's recommendation in Europe but I wouldn't know why it is any better than Mobil 1.

[Pete]

Another BMW forum pointed me to a very interesting site. As the topic of synthetic oil never goes away, this may be a good read:

http://neptune.spacebears.com/cars/s.../oil-life.html

Pete

[CiscoKid]

i use 0w40 in th winter as per BMW's longlife specs. and i use 15w50 in the summer, because it is hotter

[AIO]

Originally posted by Pete@Feb 27 2005, 08:26 AM
Another BMW forum pointed me to a very interesting site. As the topic of synthetic oil never goes away, this may be a good read:

http://neptune.spacebears.com/cars/s.../oil-life.html

Pete

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Nice link, Pete. Finally, a concrete answer to those who just cannot give up their old habits.

[peterkulesza]

really nice info

however please remember that viscosity os only loosely reopated to film strength. this is well desribed in redline website, and i do believe them.

[TMac325is]

i used 15w-50 in the winter, i wasnt thinking straight, but its worked out fine even with cold temperatures, i would recommend 5w-40 or 0w-40 for winter, and 15w-50 or summer as well

[Pete]

Along with the oil study itself, I happened along an oil filter study site a few years ago. The information is interesting for those of us who do it ourselves and it is also interesting for those who get told by their retailer that one filter is better than another.

http://www.scuderiaciriani.com/rx7/oil_filter_study/

Pete

[clarkinc]

Originally posted by AIO@Feb 27 2005, 04:18 AM
I use Castrol Formula SLX 0W-30 upon BMW's recommendation in Europe but I wouldn't know why it is any better than Mobil 1.

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