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Low oil pressure in a situation like that is usually an indication of excessive engine wear. Once the main and rod bearings start to wear, the clearance between the bearing and the crankshaft gets to be too great to maintain pressure after the oil gets hot. You can get more miles from the engine by changing to a higher viscosity oil. Just go to a higher number on the oil can. If you've been using 5 W 15 oil, change to 10 W 30. If you've been using 10 W 30, go to 15 W 40. If you're already using a heavier oil, go to an oil additive that thickens the oil, like STP or any of the other oil thickeners. The only other choice is to rebuild the engine.

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โˆ™ 2006-04-17 04:25:53
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Q: I have an 00 Neon and after about 45 min or more of driving the oil pressure light comes on but only when the engine is at an idle at a stop light what may be causing this?
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