Compression Ignition Addict
Join Date: Oct 2006
Location: Walpole, MA
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DO NOT waste your money on a 203* stat... If your stock, leave the stock stat in there. If your modded go with the 180* stat...
As to coolant...
I run the green stuff with precharged coolant filters. In 1.5 million miles I have never had a coolant related failure.
^^ agreed. 203* T-stat did nothing for my truck except make the AC awful in the summer.
As far ELC's, Cat EC-1, Navistar B-1, and Cummins 14603 are the dominant specs and odds are most coolants that meet one (ie. Delo ELC) meets all of them. As mentioned above they require less maintenance than green or gold. Currently I am running Zerex G-05 (same thing as MC gold) but I will be swapping to ELC cause I am selling the truck to my father and the test strips will be one less thing for him to deal with.
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