<< Should I then use a detergent oil? Or
stay with the non detergent.
>>
I am extremely adamant that only API service SJ oil be used if you want to
maximize the life of your engine. I can't stress this too strongly. Modern
oil has anti scuff, anti wear, anti oxidants, extreme pressure additives, and
a lot of other goodies that keep an engine trucking along. Oil engineers all
recommend it. Some backyard mechanics haven't woken up yet.
Bob ADler
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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