Motul X-Max 5w-40

[felixthecat]

Does anyone have experience with this oil?

How is it "related" to X Cess 5W-40
What class synthetic is it?
Why does it not appear on any of the Motul sites?

 

[BobFout]

http://www.motul-oil.co.uk/pdfs/synthetic-engine-oil/8100_X-max_5W40_TDS_(GB).pdf

I also just googled for the exact phrase in the title and found out what Group it is...

http://www.7lautosport.com/index.php?route=product/product&product_id=105

 

[felixthecat]

The oil obviously exists....just not on Motul's main or most websites. Strange that they would concurrently sell /manufacture X cess and X max. Supposedly then there would be markets for the two different oils.....but who would use X cess over Xmax?

Additionally I do not think that a re-seller's ad for oil is a solid source of information about base-stocks.

 

[felixthecat]

http://www.motul-oil.co.uk/pdfs/synthetic-engine-oil/8100_X-max_5W40_TDS_(GB).pdf

Interesting developments : Motul UK no longer lists 5w-40 X-max as available and has just changed the specs on Motul X-cess: it is now SM rated and BMW LL 01/ MB 229.5.
What happened to X-max? Was it just a stop-gap re-formulated X-cess?
Listed is 0w-40 Motul X-Max, now a low SAPS oil.

http://www.motul-oil.co.uk/products-synthetic-engine-oil.php

 

[CourierDriver]

What is the big deal on this oil? Just use Rotella t-6 IMHO. but Im always willing to learn>>>>>>>>>>>>>>>>>>>something.

 

[felixthecat]

Originally Posted By: CourierDriver
What is the big deal on this oil? Just use Rotella t-6 IMHO. but Im always willing to learn>>>>>>>>>>>>>>>>>>>something.


I stay away from low SAPS oils.

 

[Quattro Pete]

Rotella T6 is not low-SAPS.

 

[felixthecat]

Originally Posted By: Quattro Pete
Rotella T6 is not low-SAPS.


http://www.shell.com/home/Framework?site.../t6_detail.html

See section titled "Low emissions"

 

[BobFout]

Originally Posted By: felixthecat
Originally Posted By: Quattro Pete
Rotella T6 is not low-SAPS.


http://www.shell.com/home/Framework?site.../t6_detail.html

See section titled "Low emissions"


A low SAPS sparker oil is very different from a mid SAPS diesel oil. Low emissions for the diesel world is different.

T6 (and other CJ-4) oils have more ZDDP/SAPS than "high-mileage" sparker oils that are purported to be "higher in Zinc" etc.

ZDDP levels in CJ-4 are more like ACEA A3/B4. (and the other older Euro specs)

 

[felixthecat]

Gasoline engines do not require any limits to SAPS ( imposed to protect diesel particulate filters) but only limits related to API SM certification.
Given that formulation restrictions may have a major impact on a lubricant's performance and that the replacements for these additives maybe less effective and introduce performance compromises and conflicts, I will stick with oils specifically designed for gasoline engines.

 

[BobFout]

Originally Posted By: felixthecat
I will stick with oils specifically designed for gasoline engines.


You'll have to look elsewhere than Euro oils for this.

If it's additives you're worried about, CJ-4 additive levels are very similar to older Euro gas/diesel oils (A3/B4, 505.00/502.00, 229.5/229.3/LL01).

 

[felixthecat]

Originally Posted By: BobFout
Originally Posted By: felixthecat
I will stick with oils specifically designed for gasoline engines.


You'll have to look elsewhere than Euro oils for this.

If it's additives you're worried about, CJ-4 additive levels are very similar to older Euro gas/diesel oils (A3/B4, 505.00/502.00, 229.5/229.3/LL01).



When I said "specifically designed" for gasoline engines I mean meeting ACEA A3/B4.
The addition of diesel particulate filters has generated a whole range of oils meeting ACEA C2/C3 in addition to A3/B4. These are the oils I would stay away from.
May I ask why Shell Rotella seems to be regarded as a panacea for just about any application ?
Aren't additive packages carefully balanced and always a compromise? Then why use an oil that was specifically not designed for your particular application?