Went drifting yesterday. After a hard few laps my pressure drops to 5/10psi according to the guage. Leave it to cool for 10 mins and it returns to normal. Car drives fine (drove it to work and back today and its all fine with normal driving/occasional foot down moment) and oil level is where it should be. How accurate is the gauge? Could it be the wiring/gauge getting hot and misreading? Worth looking into an oil cooler? Searched google and not found anything similar to this. any response apprec