Hey guys,I've read/heard that the Dexcool is not a recommended coolant anymore,I have some ELC Red coolant left over from doing a flush on my '99 F250 7.3 diesel,the ELC is a coolant rated for 500,000 miles,(we run it in big trucks),would there be any reasons NOT to run it an '04 Tahoe(5.3)?....Thoughts.....thanks alot

 

Anyone know for sure??

 

There is nothing wrong with Dex-cool as long as it is maintained properly. The cooling system was designed for it. If you want to get away from the Dex-cool you need to use a coolant recommend for all makes and model