Answer :
Final answer:
The general rule is that oil pressure should be about 10 psi for every 1000 RPM. So, at 600 RPM, the oil pressure reading might be around 6 psi. This is a general guideline and specifics can vary depending on the vehicle.
Explanation:
The engine oil pressure at an idle speed of 600 RPM can vary significantly depending upon the specific make, model, and age of the vehicle. However, a general rule of thumb is that oil pressure should be approximately 10 psi per every 1000 RPM. Therefore, at 600 RPM, you can expect the oil pressure reading to be approximately 10 psi for an average vehicle in good condition. In your options, none of them correspond to this rule of thumb. In many vehicles, the minimum acceptable oil pressure is often set to around 20 psi at idle speed. Please regard this is a general guideline and the exact value may differ based on the specific engine design.
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