Thread: Tranny Flush
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Old 03-14-2009, 06:03 PM
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Default Re: Tranny Flush

It is my belief that Maintenance Schedule provided by GM is just that a recommendation under normal use. I have been wheeling in deep sand and have brought my Transmission temperature to above 200 degrees. My experience tells me the trans fluid breaks down above 170 degrees so I would change it. The only reason It went up is because I didnt air down like I should have. I have always used the dealer just because I want GM coverage.
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