Mobil 1 ESP X4 0W-40

[travis8352]

The spectrometer analysis for X3 and X4 are practically identical, I wonder what the difference between the two is. Could it be they just decided to get SP and A40 approvals on X3, and they just released the same oil under a new label?

Its not the same oil. Revision numbers are different which for mobil 1 oils indicates a different formula. The proof for that is all m1 EP viscosities have the same revision numbers, regular m1 same thing, truck and suv same thing, but x3 and x4 differ.

 

[Randomly Tired]

I agree, what is there not to like about it? It's a 3.8 HTHS 0W-40, meets Porsche/VW/MB specs, has impressive viscosity retention and very modern additive package.

Okay so I am confused. What is the difference between the M1 ESP X4 (0W-40) and the Mobil 1 C40 GT 0W40 lol

 

[kschachn]

Okay so I am confused. What is the difference between the M1 ESP X4 (0W-40) and the Mobil 1 C40 GT 0W40 lol

At least a couple existing threads on this very subject.

 

[chris719]

Okay so I am confused. What is the difference between the M1 ESP X4 (0W-40) and the Mobil 1 C40 GT 0W40 lol

There is almost no observable difference. Speculation is that it is for compatibility with certain coatings that may be used in the GT engines.