So on some occasions my oil light will just start blinking(98 integra ls) I can drive a week to work with no issues all back rds and a 20 mile trip each way. But if I get on the hwy and run her at 80 mph the oil light starts blinking about 15 miles in. If I shut the car off and start it back up the oil light stays off for about as long as the car sat but starts blinking again. Oil pressure switch? Oil pick up? Any help is appreciated. And yes the oil level is good and the bearings and head have all been replaced very recently