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Hi Scotty, this is Sam from NJ. I asked you earlier about the temp of tranny of Chevy Suburban 2015. Temp are anywhere from 190 to 205 daily. You advised to put extra heavy auxiliary cooler on it. I called and visited almost all Chevy dealerships in NY and NJ. They all told me i have already an factory installed cooler and around 200 F is normal temp for your truck. Then i checked on 2 other 2015 Chevy suburban, they had almost the same transmission temp. Please advise further, One local guy told me to flush the cooler and cooler lines to get it bit lower for summer.
Peace

yes, flush then. realize GM quality isn't so hot these days and cooler or not, tranny will go out generally around 100 thousand miles or so with harsh use

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