rob(at)wisemaninsurance.com writes:
>Today was the longest time I have had my car running. Up until now
>(other than a few block drive 2 weeks ago) all I have done is idle in
>the driveway. At idle the oil pressure has been a pretty consistant 45
>at 800 RPM, it would go to about 75 at 3500 RPM.
>Today I drove it about 1 mile and idled for about 10 minutes. When I
>was done, I noticed that at 800 RPM idle, the OP was just over 25. When
>I go to about 3500 RPM the OP would go to about 65-70..
>Why the change and does this mean I have problems with the engine.
>Rob
I don't think you have a problem, Rob. Though I can't account for the
difference in oil pressure, going down to 25lbs won't cause you
problems if it's only for short periods. My guess would be that the
combination of having the car running for an extended period, driving
it & making the oil slosh around, and the higher temp (less viscous) of
the oil could all combine to make the pressure a little low. But then
again, I am a shadetree mechanic and can't be certain.
Christopher
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