Hello there I am a new p6 v8 auto owner trying to get to grips with everything, I have some questions I hope someone can help with. My fuel guage underreads so it reads empty when the tank still has at least a 1/4 fuel in, How many miles should I expect to get from a fully brimed tank. I rearlise this varies car to car but an estimate of miles would help. My oil pressure goes to the max when under load but settles at 35/40 when hot and idle is this about right. lastly how difficult is it to remove outer window rubbers and the outer 1/4 trims. I foolishly though the 1/4 covers would come off once the 3 screws were removed but there is more to it than that. Thank you in advance for any help. Stephen.