mobil 1 15w50

[bonnie john]

i can't seem to find it on the shelves in the auto shops here

only mobil 1 5w50

are they interchangeable ?

tried to use the search function with NO dang'd success !!!

 

[Hoosier_Daddy]

if you need a 50wt then either will fit the bill

 

[addyguy]

They are very, very similar oils. The 15W-50 is a bit thicker; 18.0cst@100C vs. 17.5cst@100C