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Well it depends on your engine size. I have have a 1989 firebird formula model with a 305 5.0 engine. When the engine is cold, it will go into high idle, with the oil pressure gauge between 30 and 60. After it's warmed up, at idle, the needle should be just above the red line. As crank speed increases pressure will increase, so it will depend on your speed and RPM while driving.

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14y ago
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Q: What should your 1989 firebird oil pressure be at while driving and at a stop?
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