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Old 02-26-2009, 10:43 AM   #8 (permalink)
shovel
Master EcoModder
 
Join Date: Feb 2009
Location: Phoenix
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I don't use scangauge as a fuel efficiency tool... but I do use my truck for "very rough service" in Arizona - and transmissions are expensive. When the trans fluid is over ~210 or so, I stop & idle (only happens on long/steep inclines now that a large aux. cooler is fitted) - the factory equipped warning lamp only illuminates when trans temp exceeds 290F - juice doesn't last long at that kind of temp
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