Clearly, a dirty filter cannot supply enough oil to the engine. Filth and debris accumulate and eventually clog the filter. This can lead to an increase in the temperature, which in turn can cause high oil pressure. To clarify, if this is the cause of your troubles with high oil pressure, you are lucky.Click to see full answer. Besides, will too much oil cause low oil pressure?2. Too High or Low Viscosity. When oil viscosity is too low or high, it may be detected as a loss of pressure in the oil supply to the engine. Low viscosity generates less resistance to flow through the system, which is translated as lower pressure by the pressure gauge or sensor.Also Know, will oil light come on if too much oil? There’s a mark on the dipstick for a reason and overfilling can cause all sorts of potentially costly problems if the oil level is high enough to reach the crank. The oil light illuminates when the oil pressure is low and this is not only caused by low oil level. Besides, what happens if your oil pressure is too high? A blocked oil filter can cause an oil pressure gauge to read high: The mechanic will replace the filter and change the oil in this case. A blocked oil gallery can also cause a high reading: If this happens, a mechanic flushes the oil system while changing the oil. A broken oil pump may cause a low oil pressure reading.How much oil is too much on the dipstick?The dipstick is your gauge for abnormally high oil consumption. Real concern begins at about one quart for every 1,000 miles (0.95 liters for every 1,600 kilometers). It’s time to plan an overhaul if the problem advances to one quart every 500 miles (800 kilometers).