I have the same problem/noise in my 02 GT in cold mornings. I also use Mobil 1 5w-30 and a Mobil 1 filter. I change my oil every 3k miles and i still ahve this noise in the morning until it warms up.
I just ignore it
The problem is piston slap however, for clarification. It happens to my friends 99 Lightning in cold mornings too.
I just ignore it
The problem is piston slap however, for clarification. It happens to my friends 99 Lightning in cold mornings too.