rxspeed87

ok I just changed the oil in my car and for some reason the oil pressure gauge will come close to maxing out at anything above 3000 rpms
at 2000 it will stay near 60 psi usually just right at or a tad below at 2000 rpms also it is slower to come down now that I changed the oil
this is the first time it did this in the two years I owned the car.

once I had it go past the 110 marking on the gague by prolly a 1/8 inch or so


I am using 10w-30 oil right now
was using 20w-50
also using a fram oil filter

the oil is a little high right now though
I think it is at the top of the F on the dipstick and that is the only thing I am thinking of as to why the pressure reads so high

is there any harm that could come from the oil pressure reading so high and any ideas as to what is causing this and how to fix it?

ALTurbo2

I don't trust the factory oil pressure sending units! I'd try to check the pressure with another guage.

Felix Wankel

Check the wire on the sender. Its right under the oil filter, you may have inadvertently knocked it loose or something.

Hyperite

Are you using a different filter than before? When I switched to PureOne, i noticed higher oil pressures. I like it.
~Tom

rxspeed87

I did switch filters

I think before I was using quaker state and now it has fram in it


I doubt it is the sender for the oil pressure if anything I would think that would cause me to read low or not at all.

as for the stock oil pressure gauge I do not think it would just give up in a matter of 5 min and one oil change by this much


cruising the pressure will stay the same
when I get on it then it goes up higher then normal and will then go back down to the 60 range though it is slower then it once was

Hyperite

After the oil heats up (drive for 15 minutes), you should see 'normal' pressures. You could go WOT and see 120 instead of 3k @ 120. But yeah, when it's cold, i keep it under 4000 RPM.
~Tom

rxspeed87

when it is cold I can idle and get 40-60

when it's warmed up it's not as bad but I can still hit 120 psi

but when I used 10w-30 before it didn't do this

when I used 20w-50 it didn't do this


the oil pressure unit

does it pick up oil pressure before or after the oil filter?

Tom93R1

iTrader: (2)

When I put a Fram in mine it did the same thing. I changed back to Pureolator and now have some reasonable numbers again. I figure oil pressure is a good thing but not the kind of numbers I was getting with that Fram.

rxspeed87

yeah.... I kinda like what the pressure was last time

I mean I am hatting almost 110 when I get on it according to the stock gauge

cruise is the same though


and once I even looked over and saw that the oil pressure gauge whent past the top mark..... kinda don't want to blow something here

Flybye

I'd ohm check the pressure sensor if I were you and make sure it is within spec. It's common for them to go bad. Just one quick change out of it and it will normally fix the problem, if the sensor is bad, of course.

rxspeed87

but would the sensor really go bad over a matter of 5 min

before the oil change the readings were almost always at 60psi


if I was to rev to maybe 5000 rpms it would hit a little above but not much


now i can easily hit 110 and all that caused it was an oil change

Hyperite

One way to find out....try going back to 20W50 with your Fram....if the pressure is STILL high, it has nothing to do with your oil change.
~Tom

rxspeed87

wouldn't go to a thicker oil like 20w-50 make my oil pressure higher?

Tom93R1

iTrader: (2)

It would have some effect on your oil pressure, but not a lot. As I said earlier I found that the Fram and also the Pennziol filters made my oil pressure extremely high. With a fresh change of Mobile1 20W50 and a Purolater filter my pressure is about 30 at idle and reaches about 110 when the revs approach redline. With the Fram or Pennziol and Mobile1 20W50 my pressure was over the 120 mark before 4000 rpm.