Guys, can anyone please help me? Have tried over on the Lancer registry with no luck
I think i have a problem with the oil pressure on my Evo. Had a pressure gauge fitted by BTR Prep last week using a sandwich plate at the oil filter. Since having it sone i've only only driven round town, where the gauge has been pretty constant. But yesterday had a 50mile motorway run and the following happened.
For the record, this all occurred in 5th at around 70 (tried to keep speed even as possible to have a good look at it)
For the first 15 miles or so of motorway, the gauge sat pretty level and constant around 60 psi.
However, for the next 15 miles or so it went absolutely mental! it was fluctuating like a loon anywhere between 70psi and off the end of the gauge (gauge measures to 150psi), never picking a constant point, it was always moving up and down rapidly.
Then for the rest of the journey, it calmed down slighty, fluctuating between 90 and 110psi mainly, but still going higher fairly often
Back in town it seemed to calm down, althought the fluctuations still occurred ever so often
Today, back driving round town, its constant again.
Surely this can't be normal? Any idea on what it could be? Heeeeeeeeeelp