When I started my truck to come home from work the oil pressure was 80# as normal so hit rush hour traffic and next time I looked it was still 80# should have been at 60#. Just put a gauge in a couple months ago because dash gauge only went half way up and started quivering there, put separate...
Not so many years ago Eatons warranty was 500,000 on 80w90and 1 million on Syn. must be a reason. They shipped new trucks with 80w90 run 12,000 miles then switch to Syn. dont think they do that anymore.
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