When i first start my car or just turn the ignition my oil guage shows the correct level, but then after say 6 - 10 secs the needle drops back down under the min line and wont show me how much oil i have till i turn the car off then on again (or just the ignition). it does this everytime whether i leave the car still (idling) or whether i drive it, and the needle seems to drop at the same time everytime, what could this be and is it an easy fix?
thanks