Mlh hit the nail on the head. On my '08 F350 the tranny temp gauge never moved. I added an after market gauge and watch the temp go up and down as conditions changed. The stock needle never moved.
Personally I strongly recommend a REAL gauge for tranny, oil pressure/temp, and anything else you want to monitor.
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"What happens at camp stays at camp"
2018 3121RL
2016 Ford F350 SB SRW
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