by GLHS » Sun Nov 23, 2008 7:36 am
I used to run Mobil 1 5w or 10w 30 but after going to Redline MTL, I won't be going back to Mobil.
My other recomendation is same as Ace's; Syncromax.
I now always fill it through the top PTO hole. Adds at least 1 and possibly 2 more quarts.
92 W250 ext cab, 5spd, SPS 62/71/14, ATS 3 piece, Banks 3G intake, Icebox CAI, DDP #4+, timing 1.95 mm, SB 4 puck FE, PDR fuel pin, Hellmann intercooler, Snow water/meth, 60# springs, stock long block, D80 3.54 w/disks, 455+/1005 uncorrected, 13.34@102 7-06; 472 fuel/520 water/meth uncorrected 5-08