Oil pressure above idle between what range requires oil temperature monitoring?

• A. 25 to 45 PSI
• B. 10 to 20 PSI
• C. 30 to 60 PSI
• D. 50 to 70 PSI

Answer: (A)

Oil pressure and oil temperature work together to tell you how the engine’s lubrication is behaving. When the engine is above idle, pressure should rise into a moderate range, and that’s the point where monitoring oil temperature becomes important. If oil pressure sits in roughly 25 to 45 psi while the engine is above idle, you should watch the oil temperature to make sure the oil hasn’t overheated or become too thin as it warms up, which could reduce lubrication quality. Values well below this range can signal pump or lubrication problems, while much higher values can indicate an abnormal condition that requires its own checks. So the range that calls for oil temperature monitoring is 25–45 psi.