Coolant Change

[grepin]

yes I did a search of previous threads.

What coolant are people using /recommend.

Are you using a flush additive first.

General feel is to use hose pressure only and not a compressor as I have done with previous cars (adapter to hose).

What are peoples thoughts?

Hope not to be covering old ground.

[benm]

How often should this be changed ?

[Cubes]

Last summer I had the radiator Pressure tested & Cleaned.

New coolant etc etc.

This summer the temperature started to get warm. The radiator blocked up some how?!?

My guess is crap in the block.

Anyway I flushed new thermostat etc etc. and no good.

Then I used the Tectaloy Mukout and ran it in there for a day or two.

Flushed again with the heater hoses off and filled her back up again.

All is well now. No overheating.

BUT you will get ALOT of air in the system.

The only way to remove the air is to cut a 2ltr coke bottle's bottom off then slap the small end in the radiator and seal it with rubber or some thing.

Keep the water level high as high as you can.

Start the car and keep topping it up.

Crack the bleed nipple then do it back up.

With my car it takes ages to get all of the air out.

A Day or so later re-use the coke bottle and do it again.

You will know if there is air still in the system by:

After a drive turn the car off and put your head near the heater hoses, you will hear a kind of bubbling sound if the air is there.

I'm getting a block powerflush and radiator pressure test/clean Jan the 8th.

[grepin]

I have done the change. Just flushed everything with hose pressure used a bung adapter to maintain presure. Got a lot of dirty sludge out. Probably could have removed the thermostat to enable an uninterupted flush but thought I could have bought troubles. No air bubbles never got hot and still doesn't. Ran it to operating temp then let it cool while it sucked up the overflow fluid. Topped up and now sweet.