There was an incident at a recent track day in Colorado where it was confirmed that an oil filter came loose on track. The owner had recently had the oil changed and the oil filter O Ring was "partially blown out". To me that sounds like the filter may not have been installed correctly. The special oil filters for the GT350 have thread locker in the threads and has a higher torque value than a typical oil filter. Hopefully someone will confirm this but I believe it's 18 ft lbs. If you're not changing the filter yourself I'd make sure the person doing the work knows how critical proper installation is. Oh and remind them that it takes 10 quarts of oil. I know that one from first hand experience. :