Compression Ignition Addict
Join Date: Oct 2006
Location: Walpole, MA
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Ok so I am planning on changing everything over to synthetics since I have hear nothing but good things, and would love to have that 8-12k intervals I have been hearing about. I will be using Amsoil since I have heard the best about them. I will run 15w-40 for engine oil but not sure which specific type since there are so many. Also what gear oil do I use in the front and rear diffs, as well as the transmission and transfer case. Also I think I want to run the BHOF on the engine, any thoughts on that? Any help would be appreciated, thanks.
For the front pumpkin I would do the 75w-90, rear pumpkin 75w-140...in the power steering, trans and x-case I would run the multi-vehicle ATF.
Honestly with UOAs any properly running 7.3 should be able to make 8-12k OCIs even on cheap fleet grade oil...the factory OCI on the T444e was 10k. Granted the oil pan is slightly larger but only 2 quarts at most. You should have no problem getting 8-12k out of any of Amsoils diesel oils.
2002 F-350 4X4 ECLB 7.3 4R100 6637 filter w/ RiffRaff cover, 08 diff cover, 203* T-stat, HPX, Stancor Relay, 6.0 trans cooler, Zone leveling kit, 8'6" Western Ultramount
Sold: 04.5 Dodge Ram 2500 5.9 CTD, Reg Cab, 48re