Revelation Z28

iTrader: (10)

i changed my oil from 20-50 to 10-30 both were valvoline high mileage oil. but from making the switch, my idle oil pressure went from 20-22psi hot to 18psi hot. should i be worried now? or keep the 10-30?

i have 40psi at 2000rpm and 45psi at 4000rpm.

the_merv

iTrader: (88)

The thinner Oil is going to give you a lower pressure, that's a given. Looks like you should be good, mine with 10W-30 is a bit more than a hair below the half way mark hot.

Revelation Z28

iTrader: (10)

yea, i was paranoid about the gauge, because it bounces a little on idle. im thinking the ****** is off by 5psi anyways because the stock gauges are ****. i may hook a mechanical autometer one up later on after i rebuild.

i wonder what i would have with 5-30