Your cousin is wrong.
not completely wrong. the engine may struggle to get up oil pressure until its running at idle, so its possible for the light to stay on for a few seconds after turning ignition on
not completely wrong. the engine may struggle to get up oil pressure until its running at idle, so its possible for the light to stay on for a few seconds after turning ignition on
My 172 does this to (as i presume every RS does), doesn't make sense to me, i want it glowing at me until my engine is running...