uk400bhp

Just fitted an oil pressure gauge on my scoob but not sure if its working properly.What should the gauge read?its in psi,when i start up it goes right off the scale then drops down slowly as the car warms up on tickover,is this normal?then if i give it a rev it shoots off the scale again Any help would be great as i am puzzled.Thanks,Duncan.

jim litten

What range is the gauge?? as it sounds like you bought one that doesn't have a big enough range.

uk400bhp

Hi,it goes up to 100 psi,take it thats not enough?cheers

jim litten

Yeah a bit low as you want a gauge where it'll sit in the middle of its range for best accuracy, I'd get a 0-150psi.

uk400bhp

Thanks for that mate thats a big help what is the normal pressure range on tickover,full throttle so as i know when i get my new gauge?cheers

lightwave693

flies up to max because the oil is thick so has higher pressure, when its warmed up nice it should sit around the 30-40 psi mark on idle and up to 100 when on revs. when cold the gauge will always be pointing to the top. its when it points down low at revs you have to worry!

jim litten

At warm idle it should be around 45psi-ish, when giving it some stick it should be around the 100psi+ mark, it really depends on how healthy the engine is, also oil grade and age will see pressures fluctautions.

uk400bhp

thats helped me out no end thanks alot.What oil do you recommend?

silent running

The Subaru workshop manual recommends 1 bar or more at warm idle.