pHEnomIC

iTrader: (14)

Doing a cam swap in a couple weeks so want to get everything ready. I am gonna use new coolant. I plan on getting as much of the old stuff out as possible.

Is one gallon of straight dexcool or compatible coolant enough? Then just top off with distilled water? Or will i need 2 or more gallons? This is for an ls1 car btw.

BORN2LOSE

Are you going to drain all the coolant out of the radiator and the block? If you are then why wouldn't you use a 50/50 mixture of dexcool/distilled water until its full? If you are looking for the capacity I believe its 12 quarts. Maybe someone can chime in. Didn't come up with anything with a search. You could also check the owners manual.

pHEnomIC

iTrader: (14)

Yeah i plan to use 50/50 dex cool/ water. Was just curious how much to buy. so 2 gallons of dexcool should be more than enough?

2001NBMZ28

Yeah, that's more than enough. I always mix it first in lieu of just topping it off with water...make sure you get all the air out.

impala11419

iTrader: (1)

how would you get all the air out the system?

BORN2LOSE

Run the car with the radiator cap off and the heater on full blast for about 10 minutes. Should take care of the bubbles.

INMY01TA

iTrader: (1)

If your just draining the radiator, one gallon of straight Dexcool will do. Fill the radiator with the dexcool and then should take one gallon of water after that. I always keep a gallon of the premixed quickfill around and just use that to top it off afterwards if needed.

Craiggg

iTrader: (1)

All you have to do is have your car warmed up and then drain the radiator. Then take off the hose that connects it to the block and let it drain outta the block. Not the hose that goes to the therostat but the one pretty much above the drain ****. Atleast that's what I did.