Motul 8100 xcess 5w40 or motul 8100 xclean efe 5w30 in 14 5.0 coyote

Motul 8100 is 100% synthetic. Why would i run a 0w40 in vehicles rated for 10w30, 5w30 or 20w40?
8100 XCess/XClean are not. It is almost all Group III and has more Group III than M1 0W-40. 8100 cannot be sold as full synthetic in Germany as it does not meet the legal requirements.
 
That's showing you:
CAS 64742-54-7 - 25-50% heavy hydrotreated Group III base oil
CAS 64742-54-7 - 25-50% different heavy hydrotreated Group III base oil

An example would be SK's YU-BASE 4/5/6/7/8 family that all share this CAS #.

So it's majority Group III based.

In comparison, here's M1 FS 0W-40:
View attachment 247853

That's:
CAS 848301-69-9 - 25-50% GTL (Group III+)
CAS 68037-01-4 - 25-50% PAO (Group IV)

So, in terms of which one is more "synthetic" it's M1 0W-40 by a rather wide margin.
Okay im just going to try amsoil signature
 
This looks better

Screenshot_20241031-124353_Samsung Notes.webp
 
That's showing you:
CAS 64742-54-7 - 25-50% heavy hydrotreated Group III base oil
CAS 64742-54-7 - 25-50% different heavy hydrotreated Group III base oil

An example would be SK's YU-BASE 4/5/6/7/8 family that all share this CAS #.

So it's majority Group III based.

In comparison, here's M1 FS 0W-40:
View attachment 247853

That's:
CAS 848301-69-9 - 25-50% GTL (Group III+)
CAS 68037-01-4 - 25-50% PAO (Group IV)

So, in terms of which one is more "synthetic" it's M1 0W-40 by a rather wide margin.
Thanks for the information and explanation 👍
 
the OP just dont know is a newbie in oil geography and he seeks is a 100% synthetic oil so when he finally realized that motul 8100 is not the synthetic he wants ,he went for a more PAO oil like amsoil, thats my understanding .
but its final product that matters, so despite which one is more synthetic ,what matters at the end of the day is that they are both great oils and they do great job.
 
Back
Top Bottom