Hagen Brothers farms,Goodrich ND | I have run Mobil 1 for 30 + years, used to run the old standard stuff 1 year or 12-13,000 miles, dirt road / general farm use.
Oil analysis always said the stuff was good for much longer, The new extended range stuff with more additives should be even better.
Way back in the 70's when Mobil 1 came in the black and silver metal cans, it used to say "up to 25,000 miles *", right on the can.
Edited by Jon Hagen 5/25/2009 14:16
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Mobil 1 oil
