senicalj4579

iTrader: (41)

Did a search and some people say its 11.8q and some say 15.1q.
Im doing a FULL cooling system flush so I need to know the correct amount. I sold my helms manuals with my last ls1 so I dont have that to look at. Whats the CORRECT amount?

bad98ls1camaro

i manual says 15, i'm about to do mine tomorrow. cause my coolant is green, someone put the wrong coolant in, i just bought the orange dex-cool to put in.

LS6427

iTrader: (2)

It doesn't matter....put a full jug of Dexcool in, the rest with clean water...or if your city water is nasty, go buy distilled water at the food store.

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1 FMF

iTrader: (1)

according to my 2002 camaro service manual, engine cooling system capacity:
3.8L manual trans 11.6qt
3.8L auto trans 11.4qt
5.7L man trans 11.9 qt
5.7L auto trans 11.8 qt

1994Z28Lt1

iTrader: (1)

unless you are starting out with a dry engine block and and completely dry heater core and lines you cant get more accurate with mixture than an educated guess.

What i usually end up doing is just adding a gallon of pure coolant and then the rest i mix at 50/50 this usually ends up giving me a freezing point of -40, which is good for me since i needed my car's coolant mixed that thick because of living in north dakota

eseibel67

iTrader: (10)

50/50 mix provides maximum protection from overheating, freezing, and water pump lube. Higher %age of Dexcool will compromise the mixture.

senicalj4579

iTrader: (41)

Yea I flushed it all out till clear without the t stat.Drained water out of radiator. Put t stat back in and filled radiator with deathcool. Overfill is right at hot level when hot and Ill check it again tomoro when cold. All good

BIG_MIKE2005

iTrader: (116)

Dont mix those or your asking for engine death. You mix anything but clean water with dexcool & your gonna have a engine full of sludge.

If you have good clean green coolant thank god & dont go back to dexcool

LS6427

iTrader: (2)

In hot *** Florida, past 12+ years, last 8 with my 427ci......I use half a jug of Dexcool and the rest hose water. Its been perfect ever since.

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Darth Cypher

Are you guys doing this flush with the engine running or not? I'm about to do this myself. I might even go as far as taking the radiator off and doing a reverse flush just to be thorough.

senicalj4579

iTrader: (41)

yes I do it with the car running and t stat out. Dosent makes sense to wait till that thing opens up. Plus if theres any crap in there why would you want it collecting on the t stat?
I personaly wouldnt worry about a reverse flush. Just stick the hose in the radiator neck,either take out the drain plug or unscrew it so it drains,and let it run.
I was watching the temp guage when this was happening and it only got up to part operating temp. Oh,turn the heat on full blast also.