Mobil 400 Cj-4 And Ci-4 The Same

[evldsl]

I was told today by a manager of the store that the mobil 400 15-40 weight cj-4 and ci-4 were the same blend and that the only thing that was different was the box labeling. I am wondering is this true since I have just recently changed my oil and am now useing the cj-4 instead of the ci-4. I read the recent TDR and the article about the oils.

 

[MickeyMiller]

Not the same. . by regulation! Read the excellent article in the current TDR comparing the various available oils!

 

[Gary - K7GLD]

That same droid would probably ALSO tell you "Ford owns Cummings"... :-laf

 

[DHuffman]

Mobil does't make a 400... if you are referring to Chevron's Delo 400, the formulations are different (as a reasonable person would assume).