What are the possible reasons for an oil pressure drop?
During the normal operation of a vehicle, the oil also serves as a sealant by virtue of its viscosity. This effectiveness of the oil is reflected in the oil pressure gauge. If the oil pressure is seen to go down, it could have reduced for several reasons. Firstly, it is possibly because the oil has thinned down considerably, due to fuel dilution. Secondly, it could be because of insufficient oil in the system, either because of an oil leakage or excessive oil consumption or even possible oil pump failure, causing the oil to not circulate. Check the oil for fuel dilution and check the oil level in the sump. While checking the level of the oil in the oil sump, ensure that the vehicle has been at rest for 3-4 hours, which will enable all the oil to flow down into the sump. If both seem all right, then check the vehicle for pump failure or any other hardware related problem.
