I think that is Valvoline's version of Castrol GTX Classic.Ok, flame on, I went with this. Valvoline VR1 racing/high zinc 20-50, I think it’s dino not syn but I liked that it had higher zinc. It fired right up and ran smooth w/ ~60 psi oil. I took it out on the freeway after warmup and ran it hard in top gear to build up heat, then would downshift into 4th and hold it to 5k rpm. Ran like a champ, now that it has heat I took the off-ramp and let it fall to idle in town ~15 psi this is where it would usually rattle like diesel on the valvetrain and show barely single digits on pressure. nothing, no noise at all. Super quiet. I hope this keeps up when it gets above 80° here and I pull my boat with it.
Very promising so far. I’ll run this for 5k or so then do synthetic version of the same oil.
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I bought it because it was the only one on the shelf in the weight I wanted. But thanks for puffing up and pounding your chest trying to virtue signal.I don't know why there is a constant infatuation or usage of conventional VR1.
Went to walmart.... Conventional VR1 quart was $8.50. Synthetic Mobil1 15w50 was $8/qt. Conventional VR1 was $10 more for a 5 quart jug when compared to synthetic Mobil1 15w50 jug.
I see ever thread on every forum mentioning vr1 as a joke. Blind sheep!
Back in the day I had a 95 Rodeo with the same 3.2l engine that I bought with < 70k miles. It had the same oil pressure that the OP reports and the last I knew, it lasted to 240k when the family member I gave it to sold if off. It lived on a diet of Delo 400 or Delvac 15w-40.IMO you have a failing bypass and/or oil pump.