Did you know?The 2012 Chevy Avalanche has up to 8,100 lbs towing capacity.
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I'll add my . I ran Dexcool in our 92 Grand Caravan after the first flush at 2 years old. 12-1/2 years later it was still running with Dexcool when we got rid of it. We had no issues whatsoever. I think the biggest issues were that people didn't adhere to the service schedule - at that time it was a 3 year flush/refill. I've run it in my Av since it was purchased new in June 2002 with no issues. I'm due for a flush this year so it will get done when the cam goes in the week between Christmas and New Years. I've only got 62K on the truck so there's not a ton of miles; however, it's now 6-1/2 years old so I've got 19 years experience with Dexcool with no issues. Keep in mind that 2/3 of that was in a vehicle that was not originally designed to run Dexcool. I don't think you have any worries running it.