Normal Oil Pressure Reading?
#1
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What's the normal oil pressure reading under idle and normal, warmed up running? Test drove one today and the needle was at the top of the gauge until it warmed up and then it fell down to the middle, 2/3.
Ben
Ben
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When the car starts and is cold, it's around 5, when it warms up, it drops to 2-3, but only when there's no load on the engine. If you rev the engine when it's warm, the pressure shoots back up to 5ish.
#6
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Hot idle pressure also depends on what weight oil is being used. Case in point, 10w40 in the nice NY weather as of late was about 2 - 2.5 bar at about 200*F sitting in traffic. I just switched back to 20w50 and its at about 3.5 bar at 200*F.
My temps peaked around 210*F earlier today autocrossing, pressure did not drop below 3. I get a little nervous when it starts getting around two. Anything less than that i would probably shut the car off. The manual does state though that even .5 bar at idle is within limits.
My temps peaked around 210*F earlier today autocrossing, pressure did not drop below 3. I get a little nervous when it starts getting around two. Anything less than that i would probably shut the car off. The manual does state though that even .5 bar at idle is within limits.
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Originally Posted by TazioNYC
Thanks...very dumb question -- what does an oil's weight denote and what's recommended? is it weather based?
http://en.wikipedia.org/wiki/Motor_oil
Do a search, lots of oil threads, according to the owners manual a wide range of weights are acceptable-depending on the driving conditions/temperatures.