What would cause the oil pressure to become high (or at least the gauge is reading that its high)? Until recently, it has been reading slightly to the right of 60 at speed, now the gauge is reading somewhere around 100 and drops back to slightly to the right of 60 at idle.
Is it safe to run with this much increase in oil pressure?

 

Oil pressure sensor is dying.
Oil seeps into the insides and coats all the electronics.
This induces more resistance, and the gauge things it's super high oil pressure.
I've seen this happen before.


-Ted

 

no most likely your didnt add oil like you were supposed to(every 500-1000 miles) and now your getting yourself over high readings, i know this cause this happened to my car, it then consumed 3 quarts of oil then it was happy again, i luckily found this out while high speed corning and the oil buzzer came on to i check it

------E======F--------------------------------------------------~~~0
``^ it was here, bad, but so far the engine hasnt had any other problems, but we will see when the rebuild comes...

 

also might want to try only using mazda oem filters. i used a fram and a car questonce and i was a little high on pressure

 

Yeah I was goning to say that too. Some aftermarket filters (cough Fram cough) when clogged or the element has internally collapsed or fell apart (cough cheap glued element cough card board cough) will raise the oil pressure.

It is much cheaper to replace the oil filter with a Mazda OEM, than spend the money on a pressure sender, so do that first. But if it still has a problem, then I would be following Teds suggestion of the sender.

 

Thanks for the info
What is the chance its the "oil pressure control valve" or "oil pressure regulator valve"?

 

Almost non-existant...
If it were problems with those components, the oil pressure would read low or "0".


-Ted

 

Check the oil pressue guage "condenser" mounted near the clutch slave cylinder, it splice into the wiring for the oil pressure sender, if its missing or the wire is broken it makes teh guage read high..max