When starting a vehicle, the oil pressure should: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question When starting a vehicle, the oil pressure should: Answers Gradually build up pressure over the span of a few minutes. Come up to normal within a few seconds. Start high, then decrease as the engine is run. Explanation Oil pressure should come up to normal within seconds of starting the engine. This questions appears in the following tests: Arizona Double Louisiana Class B Knowledge Test Minnesota HazMat Mississippi Passenger Virginia Double