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<x-charset UTF-8>Heres my viewpoint... you can get 125K miles out of a stock motor with Dino oil, even under heavy use.... why use Synth? I dont think youll get more than that out of it with Synth. With a 1776... reduce that number by about 30% NEW engine , with SAE30, at 70mph (~3400RPM) on the highway on a 90 degree day will net you 38-40PSI and about 12PSI at idle (less idle pressure with full flow)' at 100Kmi im down to about 25-26PSI at 70 and 6-8PSI idle. Just for a reference anyway. Keith > i was using 10W-30 before. they don't make a straight weight 30 > synthetic and i was trying to take advantage of the new technology in > synthetics (insert arguments about the validity of that statement). > > >for jim: > yes, i have a full flow with tapped case and berg single outlet oil pump. > > re: pressures: at what pressure should i worry that it's too low. at > 6 psi? i removed the idiot light to use the same wire for my gauge, > which i look at religiously, so the light can't help me. i guess the > follow up is, can i trust the numbers coming from my nice VDO stuff > for accuracy? if i am able to maintain 20 psi or even 15 or 10 at > stop lights on a "hot" drive is it perfectly fine? > > also, if i can trust my temperatures coming from my oil temp gauge, at > what point should i worry? > > same for head temps, what is the worry number? the sender is on spark > plug hole number 3, held in by the spark plug. it stays at about 350. > gets there quick and then stays pretty constant, regardless of oil > temp creeping up. > > if i want to change back to dino oil to check the numbers, can i just > do it willy nilly? are there any issues to having the different kinds > of substances running through and mixing up so much? i guess not, if > they sell synthetic blends (which i heard were bad). > > thanks, > > dan > --------------------------------------------------------- > Dan Hoopes > 1967 Red Squareback "Stanley" > www.hoopes.net/dan/square/before.html > --------------------------------------------------------- > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > </x-charset>