Hi all,
Am about to put new oil in the 6.9, and want some suggestions please. The previous oil thread (http://topklasse.org/forums/showthread.php?t=1755) has people suggesting everything from the Valvoline cheapie 20W50 to Penrite HPR50, HPR30, Mobil 1 and WGB's super-pricey Redline.
My...