[kenchan]

also check to make sure your car is flat when you're measuring.
i found different readings when i have the car parked upwards
and downwards my driveway.

i just check it in the morning once in a while before it's fired up.

i suppose if it's not too much hassle, check under the car to
see if your filter or plug area is not seeping with oil. you
dont even need to craw down there. just take your magnet
tool with a mirror.