Sight Gauge

Just changed the oil and my oil gauge is reading very high.?

I just had my oil changed in my 1995 Jeep Cherokee and they talked me into thinsetec oil. Now when I step hard on the gas my oil gauge jumps past its highest rating which is 80. Before my gauge would jump to 3/4 when I hit the gas, but now it really goes high. I was wondering if its a bad gauge or crappy oil.

Public Comments

1. cold starts normally do that.
2. maybe you have a little to much oil when your car is hot,turn it off and check it again if its right on your dip stick then you will know its the oil
3. oil level will not effect pressure until it is too low. if you are using a thicker oil, that might do it. a stuck pressure relief valve would too.
4. So - what is thinsetec? Never heard of it? What weight? Sounds as though it is too high viscosity for 1995 Jeep?
5. weight of the oil could do this also if the old oil was really old it could have thined out thus giving a lower ppressure. also whats really high 30 psi 40psi 80psi.... when your engine reaches operating temp i would thing 30psi would be healthy at idle just as long as you have more then 5 or 10