Greetings all,

I will change my coolant next summer and I need to know
the best mixture (Coolant/water ratio).

75% coolant / 25% water???

Also, How much gallon I need to full the coolant system??


Thanks
Serge

 

Depends where you live. In Houston; I run 25% antifreeze, 75% distilled water, and 1 bottle of REDLINE Water Wetter year round. More up north you should be safe with 50/50.

A stock engine takes about 2 gallons. With the larger radiators, about 2 1/2.

 

I tried 50/50 and noticed temps near 83-86 degrees on my PFC....As soon as I went to 75/25 I noticed it dropped to 79-81 degrees....coolant is good to -10 degrees