[Ironhorse]

The "green stuff" is the only coolant I use. Have it in my '57 Chevy 2Dr, '71 Chevelle, '71 Chevy 4x4, '88 Caprice and our '99 Tahoe. I buy the straight full strength and mix it my-self with distilled water. Hate buying the pre-mixed as your paying for half water in the jug. The Tahoe from the factory used the pink ''Dex-Cool". I drained and flushed it and went with the green Prestone when I had to replace the intake gaskets on the Tahoe, common problem for the 5.7 / 350 V-8. My opinion but I just don't care for the Dex-Cool "jelly-freeze". Have never tried it and don't intend to but have been told DO NOT mix the two coolants.