rbs62ExplorerDec 23, 2016Oil additive f350. 7.3 2001What is best oil additive to add to 7.3 with 171000 miles?
RAS43Explorer IIIDec 23, 2016That study is 10 years old and means nothing today, IMO. Fuels have changed as have engines. All I use is an antigell additive in cold weather.
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