Thread: Antifreeze question

you can buy a antifreeze tester for cheap, it will tell you if theres to much or to little antifreeze.

or pull the lower hose and let some drain out, top off with water.

the over flow will take the water and mix it with the rest, but the car has to get hot/ up to temp, and then cool down on its own with out touching the caps.

pretty much, as it heats up it pushes some out, as it cools off it sucks it back in, as long as your rad cap, lines/hoses and overflow tank cap are all tight that is.

you do know that any car out there can run pure water with little problem right? if your mix is off a bit i wouldn't worry to much about it. If your running pure water and you live were the snow falls every years best to have more antifreeze then to little.

you dont want to run pure water for long, pure water will let the inside of the block rust, where antifreeze adds rust protection and keeps from freezing. as well as boils at a higher temp (380 deg) where water boils @ 212.

antifreeze is your best friend where ever you live.

It also lubricates the seal and bearings in the water pump, right?

yep

No. Dexcool is crap.

Drain it, flush it, fill it with cheap green stuff.

Originally Posted by Phlip77

I've always been under the impression that a mixture that is more water will cause rest and blockages within the rad. But in the past I've been told that antifreeze has a lower boiling point then water, that's why antifreeze needed to be mixed with water (or already premixed).

Correct me if I am wrong.

google it, properly mixed antifreeze boils at 380 deg. we all know water boils a 212.

now straight antifreeze boils before water would. but your not supposed to run straight antifreeze, its to be mixed. either you mix it, or buy pre mixed, but pre mixed is a waste of money.

science my friend... science.


some smarter then us both people figured this all out decades ago.


as you may know your not supposed to run antifreeze at most drag strips, as well as nascar and such. antifreeze is pretty slick it it hits the track, so they use another additive that just raises the boiling point of the water.

The other thing that has to do with raising the boiling point is the pressure the rad cap lets the system hold in. There are some guys in the 3s world that run highly modified cars and live in the desert heat. The stock 3s cap holds 13 psi if I remember right. One of them discovered a TRD rad cap that holds 18 psi (?) fit perfectly and it helped keep temperatures down.