Quote:
Originally Posted by RMG
Apparently ignorance is bliss and I got tired trying to prevent you guys damaging your engines. Last try:
...... that might translate into an improper cooling of different components in the engine etc. There is more to the viscosity story ...for example German Castrol 0w-30 viscosity at 100*C it is 12.1 which is very close to being a 40W The range for an oil be classified as a 30 weight is 9.3-12.49. A 40 weight is from 12.5-16.29 so you can see this oil is quite "thick" at operating 100 Deg C temps, almost thick enough to be a 40 weight. So these numbers are not absolute values. Viscosity as important as it is is not everything you should pay attention to...I don't have time for this...in short you should use an oil from BMW's NA list.
:
|
interesting you say it wont cool properly when most reports when comparing oils say that liqui moly will keep your engine slightly cooler when running hard such as track racing. Not to mention this thread on bimmerfest...
"Full synthetic" does not mean better protection.
Both BMW and Lubro Moly 5W-30 are "hydrocrack" oils
(restructured mineral oil with synthetic materials added for
extra protection and longer life). Castrol is made in the USA
where, under a 1999 ruling, it can legally be labelled as "full
synthetic." In Germany, these words are reserved for oils
that are 100% man-made material (i.e. no mineral oil). As a
result, Lubro Moly 5W-30, which is made in Germany, must
be labelled "synthetic technology" even though it contains
higher-quality additives and provides better protection than
the BMW/Castrol 5W-30. How do we know it's better?
• Lubro Moly 5W-30 has been tested and approved by BMW
in Germany under Longlife-04 standards. It has an API
(American Petroleum Institute) rating of SM, and it's rated by
the ACEA (European Automobile Manufacturers' Assoc.) as
A3-04/B4-04/C3-04. This is all on the Lubro Moly label.
(And we know how the Germans feel about accurate labels.)
• We tried to find ratings on BMW 5W-30, but the Castrol
web site refers you to BMW, and the BMW web site* offers
no data – it simply lists a few oils that meet the old BMW
Longlife-01 standards. No mention is made of BMW 5W-30
meeting Longlife-04, on either the site or the label, and
there's no mention of ACEA ratings. Interestingly, BMW does
say, "Use only oils with an API rating of SM or higher," but
the label on the BMW 5W-30 bottle says its API rating is SL.
We suppose it's possible BMW USA hasn't updated its web
site or label since '04 when the new Longlife standards came
out"
I always change my oil at 5k miles so if the ticking doesnt completely stop then I will most likely revert back to castrol synthetic, and incase any one was wondering castrol sythetic is NOT the same as castrol syntec. Im sure most people know that but thought I would throw it out there. I appreciate your info but its really easy to call someone an idiot over the internet.
