Every car that comes into My shop with Dex-Cool We recomend replacement to standard green coolant. We see it most problematic in mid 90's S-10 P/U and Blazers. The funny thing is one of My customers called a local GM dealer to complain that at 50k miles the had to replace most of thier cooling system because it was so plugged with Dex-Mud, they asked why was he checking his coolant before 100k.



Personnaly I run Evans NPG coolant in everything I have. I was sold for life on the stuff when at Hot Agust Nights in '98 I had the electric fans on My Chevelle quit working while sitting in traffic. Air temp was 105 degrees. I watched in horror as the temp gauge pegged. However, the car never boiled over, had any pinging or any power loss. No signs of running hot at all. It is absolutly awesome!