Hi,

I have a 2000 civic 1.6L with 98,000 km's. Auto tranny. I want/need to flush the rad. All the posts I read basically say pull the rad plug, hoses and the stick a water hose in the top hose. Cool, but then how do I get all the water out, cuz like where I live in January it's -35c at night and a block full of water will be ******!

 

I believe there is a block drain plug some where, I'm not sure where though. Otherwise, take it to a dealor, they charge about $45 to do it and you don't have to get your hands dirty or worry about where to put the antifreeze.

If you are hell bent about doing it yourself, you will need to disconnect a lot of the hoses. You may also want to try running compressed air through after you flush the system. That should take out a lot of the water.

 

once you have it flushed out the water would go into the coolant. having a little bit of water wouldn't freeze up i wouldn't think. you'll probably have to add a little water to the coolant anyway (i'm not sure about those temps though). the coolant bottle should be able to tell you how much water you can have. of course, i've never been in those conditions so i wouldn't know completely.

 

-or, you can use this stuff called Super Flush (made by Prestone.)

 

Yeah, we mix 60/40 (60% anti) so it's about safe to -50c. cuzz it will get to -40c once in da winter.

 

a haynes manual once told me there were a few drain plugs aroiund the engine block.. one was above the oil filter.. which means its in a hard to reach area.... the dealer probably use one of those flush machines.....