Move to M1 FS 0W40 ?

[edyvw]

Does it make sense to use the Lubrizol tool to compare A40 and C40?

View attachment 230536

No it does not, as is stated by Lubrizol.

 

[edyvw]

if you can rely on these kind of "tools" or graphs, C40 looks great!
I had heard of A40 but not C40 till now!

Who cares about a little bit of fuel economy? and LSPI, let's not go there.

What is "After Treatment Compatibility"? Sounds more like a surgery post-op than an oil terminology!

These kinds of comparisons are useless, as Lubrizol states.
Also, after treatment compatibility are DPF, GPF, EGR etc. If the vehicle is equipped with DPF or GPF, C40 is the only approval of these two that should be used.