[arpad_m]

Originally Posted by Rich292

I always do my oil checks before starting a ride, so the car has normally sat overnight, if not longer. When I do occasionally check during rides at gas stops I haven't noticed any appreciable difference in oil levels between the overnight checks and a 15 minute gas stop.

I let the car drain 30-40 minutes at oil changes, so there shouldn't have been any significant residual oil left in, and I definitely did not put in more than the required 10 quarts.

My method for checking the oil level is to take out the dipstick, wipe it clean, then re-insert it and spin the handle a few times so the bob at the end will read the same on both sides. I was getting consistent 9.25 quart readings for a few checks before I topped it up with the 1/2 quart.

What sort of oil filters do you use? I use Purolator Boss filters, so I wonder if that filter has a slightly higher capacity and that is why I don't get a full reading at oil changes. You would think the filter capacity can't be that much different, but it might account for something. Though that still wouldn't explain why 1/2 quart top up is making it read alarmingly high now.

Aha, I see, you probably read the dipstick right. I never spin the handle and still get consistent readings on both sides.

I use the Amsoil EA15K50 filter with Amsoil's Signature 10W-30 oil, but I have a built engine and do not recommend non-stock oils or filters to owners still within their powertrain warranty period. Either way, I don't think the filter could've been the reason for your readings.