[robc1976]

Originally Posted by oogabooga

I know the 300V is double ester based as noted above. Is the 8100 X-Cess alideally so ester base? I think Cloud9 makes a good point about these ester oils not being compatible with the seals and I would like to stay away from them as I will be using this oil for a 7,500 interval or so.

I have used motul 300V for the last 30,000 miles. I did go a little long on one of my changes 6000 ( usually change it at 4000) and I have no issues. Great oil, but so is 8100.

[Groganrocket]

I get mine from nolimitmotorsport 29.00 for 2liter cans.

[Groganrocket]

Originally Posted by Jeff@TopGearSolutions

We have it. We can try to price match if you find it cheaper.

29.00 2 liter cans

[Groganrocket]

I use 300v 0-40 any diff vs 5-40

[scflaw]

Originally Posted by Groganrocket

I use 300v 0-40 any diff vs 5-40

I find that the car with 300 v warms up slower, lower gas mileage on the trip computer untill it warms up to 110 C.

Cools down faster. 1 hour parked in 27C drops oil temps to 70C-80C from 110C.

[JamesM3M5]

Originally Posted by Cloud9blue

I always take things said on the internet with a grain of salt. But this seems to be some legit information.

http://www.bobistheoilguy.com/forums...&Number=199768

"1 100% ester: very unstable, incompatible for most seals. 100% ester lubricants will have to be drained
from the engine every few hours. Reserved for applications when their polarity is so necessary than their
inconvenience will be dealt with. For two-stroke applications, where the engine oil is mixed with the gas and
must burn, the instability of esters is a good thing. It is not the case for four-stroke applications."

That sounds like a load of tripe. Not sure how this could possibly be true when we have street and race customers running for years with no seal degradation and thousands of miles of street use or multiple race weekends between oil changes. Oil analysis never indicates any issues with breakdown or contamination. I know Bob is respected on the web but that info is empirically incorrect.

[kiteboy]

So motul is not good??? For n54??

[CSL335i]

Originally Posted by kiteboy

So motul is not good??? For n54??

Motul 300V Power 5W40 does not contain 100% ester, just maybe up to 25%. I am using this oil at my e93 M3, e92 335i and F10 M5 without any problem.

We rebuilt my n54 engine (in 64K in the clokc), The last 40K km was with Motul 300V 5W40. Absolutly clean engine, no any signs of unwanted things. Seals were just fine.

[Jeef]

Originally Posted by BuraQ

Anyone that post in this thread stating another oil is better than another please produce lab results.

@ OP thanks for the heads up. Burning oil too fact is very important along with other thing. If possible after about 6k Miles send a sample to blackstone labs to see how the oil is doing in your car.

Thanks

I will do this.

Thanks for response everyone.