me to , i'am running 20-50 and my oil pressure is up to 80 on start up and depending on rpm of course, runs at 40-60 the rest of the time, and 20 at idle.. i know the rule of thumb is 10psi for every 1000 rpm's but do you think 80psi is to high? should i be running a thinner oil? i'am thinking on going to snythentics, whats a good weight to run , i know there inherently thinner... thanks