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Mount Vernon, WA | With pressurized cooling systems, a person should be able to take the water temp up to 250 degrees plus if needed. The reason they don't is because pistons start to melt and valves start to warp if it gets much hotter.
If an air cooled diesel engine was that much better on fuel, then why don't you see any of these engines in class 8 trucks, where PACCAR, Freightliner, and others are looking to save every last drop? They are absolutely anal about fuel economy right now. Cummins has even changed their oil pump to reduce parasitic losses, but no-one is talking about air cooled engines.
Edited by Bern 7/2/2012 18:36
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Deutz Air Cooled Irrigation Engines ?
