I built up my personal oil reserve in 2008 when I was driving a lot for work. Bought enough to last the full contract then the projected ended early. Still left with four cases of Mobil Clean 7500 synthetic blend (unopened).
Is it still usable as in will it still meet SAE spec, reasonable TBN, etc.?
Regards,
GEWB
Is it still usable as in will it still meet SAE spec, reasonable TBN, etc.?
Regards,
GEWB