Coolant ratio

[Chris92]

So around two years ago I did the timing belt and water pump and put fresh vw coolant in once I flushed the system, anyways today I'm going to tackle the main thermostat so il be losing some coolant. Can I just pour my two 1.5L g13 coolant in until it's full and add water after to top up once it's bled? That's if I need to top up with any water anyways. See I'm not sure how much will run out, say it 3L runs out could I pour one g13 bottle in and top with water or pour my two bottles of g13 in? Just a little confused as I will not be flushing the whole system.

[lukemk5gti]

Don't use tap water. Too many minerals etc. that'll scale your radiators internals. Get distilled water!

[Chris92]

Cheers for the heads up but I already know that and got the distilled water sat there waiting 

[dazza]

I bought G13 from the stealers and it said do not dilute.

[Chris92]

I bought G13 from the stealers and it said do not dilute.

Thanks, il just put it all in then if it needs a top up il add a little water. Surely having to much anti freeze won't hurt?

[dazza]

This was a 5L bottle. Don't know if that makes any difference.

[dazza]

Don't want to give bad info. Surely there will be dilution ration on the bottle.

[bacillus]

Neat G13 will be fine if you live in Siberia...   

[Chris92]

Neat G13 will be fine if you live in Siberia...   

You'd think I did live their, summer, what's that? It's lashing down and freezing, not far off finished tho and I was expecting the job to be a pain but it's been easy don't know what people are on about     

Not much has come out anyways maybes 3 litres I'd say. Going to pour 2 litre of g13 in then top off with water. I've got a anti freeze tester.

[dazza]

The one i bought is already diluted concentration 40%

The main stat is easy if you get the two triple square bolts holding the hard pipes. I found them a little late into the job.

[ROH ECHT]

Stick with dealer blend...run it straight as it is pre-diluted and made for this engines alloys.

[Chris92]

Looked on the bottle and I'm 99% sure it's neat. Anyways in the end I put 3L of g13 in and a little bit of distilled water. Bled it, when for a run got back topped it up a tiny way and now it's done, heaters working etc. engine temp stayed at 90 the whole way even when coasting  unlike before.

My anti freeze tester reads -50c , think I should drop a little coolant out and top with water or just leave it, can too much anti freeze cause any damage?

Mine must be neat coolant, your says protection up to -25c I've got double that according to this tester.

Cheers for the help

[dazza]

Mine took nearly the full 5L to fill it. 3 litres and 2 litres water should be fine. I think its supposed to be 1:1. Hopefully someone who knows better will chime in if i'm wrong.

[Chris92]

Been in touch with the seller and it's 100% neat as I thought, apparently the diluted version is discontinued.
After looking around on the net it says to use a ratio of 1:1. Il just drop a little out and add water then check with the anti freeze tester, maybes aim for -30c. Just don't want to have too much anti freeze in incase that can cause problems in itself.

Cheers