driving around town my oil pressure is fine but once i do about 30 odd k's out of town with cruise set around 110 my oil pressure goes right up to the red line then drops down to just above half it takes about 10 mins to move from the top to the bottom but only does this when i travel long distance. it sits fine around town and short drives. then when i stop it after along drive at idle it drops right down to around the quarter mark. dont think its the oil sender unit cos short drives about 20 mins or less its fine. gonna change from castrol gtx3 15/40 to the penrite hpr15 as its service is now due
cheeers guys
