Oil gauges look like most indicators on your dashboard. There’s a label (typically “OIL”), numbers (ranging between 1-80 or 1-100), and a dial with an indicator needle. Instead of numbers, some vehicles use “L” and “H” to indicate high or low pressure.Click to see full answer. People also ask, what does it mean when my oil pressure gauge is high?A high oil pressure reading on your gauge means: The oil is too viscous (thick). Most cars today are designed for 0W-20 to 5W-30 viscosity. If you are using 10W-40, 20W-50 or something like that, you will have high oil pressure and high wear.Similarly, what should your oil gauge be at? The needle on this gauge should settle at the median point approximately twenty minutes after switching the engine. Ideally, oil pressure should be between 25 to 65 psi when the oil is warm. A reading of 80 psi or higher means that there is a serious issue that needs to be resolved. Accordingly, what does the oil pressure gauge tell you? The oil pressure gauge in your car’s dashboard tells you more than just the level of oil currently in your engine. Just like when a person’s blood pressure is too high or too low, your car’s engine can suffer significant damage if the oil pressure is too high or too low.Why is my oil gauge on 80? Symptoms of a bad oil pressure gauge Have a mechanic check the oil level. Cold weather can also make the oil pressure read low until the oil pump has had a chance to deliver the oil to the engine. Oil pressure gauge reading too high, or over 80 PSI while driving, especially at higher RPMs.