M1 10w30HM _ Fe high?

Messages
1,589
Location
NC
I see all the recent posts lately about the high Fe in many M1 oils. Do the high mileage oils follow the same type of trend. It seems to be a stronger add package and a little thicker.
 
Messages
1,513
Location
Peterborough
Most are doubtfull that any of the mobil oils higher FE readings are actually excessive mechanical wear. PLUS, most of the "higher" readings are still well within spec. Just food for though. The high mileage oil are really good though. Better for your application, maybe?
 
Messages
25,046
Location
ON, Canada eh?
The oils are so good they even clean the iron cylinder liners or block right out from under your hood! (J/K) That's a very interesting question... Try looking up M1-HM UOA's
 
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