Swblee

just buying some oil the other day and i noticed that there are two different motul 8100's the x-cess and the x-clean doen anyone know the difference and if i can mix them. Also is it wise to use these with a stock filter part # 15400-pcx-004

Thanks

Swblee

bump
I was hoping to do an oil change this week if anyone has any input.

INDYMAC

They both look interesting and expensive. But esters are expensive and are usually only found in turbine aircraft engine applications because 100% ester based oils are the only ones that can handle the extreme heat. I've seen a couple of UOA's in gas engines that looked OK with Motul. Give either one a try and let us know how it works.

cosmo rockit

Check out the technical specifications from the mfg.

http://www.motul-oil.co.uk/pdfs/synthetic-...40_TDS_(GB).PDF

http://www.motul-oil.co.uk/pdfs/synthetic-...40_TDS_(GB).pdf

SpitfireS

In the PDF's they claim this, that and the other but don't specify the HTHS.
A TBN of 10.3 is not that impressive, even less impressive is the TBN of 7.5
A true syn oil with a pourpoint of -33C... c'mon

Besides all this, a 5W-40 weight in Canada is... not what I would use, and especially not in the winter.

alSpeed2k

In Canada they have 5w30, it's the 8100 Eco-nergy 5W30.

INDYMAC

I'm not sure that your post makes much sense to me Spitfire.

It says the HTHS for both are >3.5.

If these oils are in fact 100% ester based (the viscosity indexes look high enough), then a TBN of 10.3 or even 7.5 is very impressive. Most esters used for engine oils are very acidic chemically. I would rather see what the TAN is and be able to watch for a correlating TBN/TAN ratio as the oil gets used.

A true synthetic oil can have any pour point. It would depend on what two or three base oil viscosities were used/blended, and what type of viscosity improvers were used. When I was in the Navy, we used two engine oils in our aircraft. MIL-L-23699 was used most of the time, but for temperatures below -40C we would use MIL-L-7808. Both oils were 100% POE based.

These Motul oils appear to be targeting very high temperature operations in high out put engines and deposit control (especially for the notorious intake valve deposit formations on common DI designs), rather than how the engine will start under Arctic conditions. Here is a good study on what is happening with DI engines:

http://www.bgfueltest.com/

I don't think anyone knows how to tackle this problem from a fuel additive prospective, but some in the know think it can be minimized by using ester based oils due to their ability to handle higher heat. The jury is still out though.

Is 5W-40 a good choice for Canadians? I don't see why not. If I were crazy enough to drive a convertible summer sports car during a Canadian winter, I'd be more worried about the road salt eating away at my car!

SpitfireS

In the X-cess 5W-40 pdf they don't specify the HTHS.
Sure, if it meets the ACEA A3/B3/B4 it HAS to be over 3,5 mPa/s but they don't print what their oil produces.
It's the same in the X-clean 5W-40 pdf.
They just talk about what the minimal ACEA specs are.

Or I'm missing something ?

Where does MOTUL mention it is Ester/GRP-V based oil?
On their website?
Link maybe?

Well.. first of all I'm not a big fan of 40 weights in the F20/F22... anymore.
(and I've used them.. twice - 5W-40 and 0W-40 during my pre-BITOG days.)
Its not needed for "protection".
You'll loose some oil flow at higer rpm as the pump bypass will open at a lower rpm.
The engine is less rev-happy.
You (INDYMAC) know as well as I do that even 0W-40's flow less than 5W-30 at moderate temps, the 40 is "killing" the 0W.
IMO - it's 2010 you know - 5W-30 is the standard-can't-go-wrong-year-round-anywhere oil for the S2000.
The colder the cold start temps get the more one should be thinking about 0W-30's.
Btw.. modern 0W-30 oils are year-round oils too.

INDYMAC

Maybe it isn't group V, but this is the information I was using:

http://matrixsyntheticoils.com/store/motul...treet_oils.html

I won't argue with you about viscosity choice, but 5W-40 will work most anywhere that an intelligent person would drive an S2000. But if I lived in Canada, I would probably go with AMSOIL SSO 0W-30. I'm pretty happy with 10W-30 here in Texas though.

Jeff_s2k

In Canada, 10W30 and 5W40 is the recommend oil by Honda in the owners book. Almost S2000 canadians owners do not use the car during winter, exept maybe in British-Columbia where is more warmer and almost no snow during winter.

So, there is no reason to use 0W30 during summer season. Sometime, the air température can go easily to 100 fahrenheit here in Montreal.