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Red coolant
Posted: Mon Mar 23, 2020 7:44 am
by Village Idiots
What's the thinking on red coolant in the 1.8 inj. engine?
Re: Red coolant
Posted: Mon Mar 23, 2020 10:30 am
by chopperoli
Some people do it, although some reds aren't compatible.
I use Comma XStream G48 green, tried & tested favorite, zero risk
Re: Red coolant
Posted: Tue Mar 24, 2020 8:00 am
by Village Idiots
To swap to that is it necessary to completely get rid of other antifreeze in the system, red or blue?
Re: Red coolant
Posted: Tue Mar 24, 2020 10:18 am
by chopperoli
Red, probably
Blue, probably not, but a flush through is always a good idea anyway if refreshing
hth
Re: Red coolant
Posted: Tue Mar 24, 2020 11:58 am
by GT_II
I haven't seen official VW advice, but this site is very informative:
https://www.wolflubes.com/EN_EU/Blog/20 ... olant.aspx
Current VW G13 coolant and the previous G12++ coolant are both supposedly mixable with earlier coolants, but apparently produce a horrible brown colour when mixed with G10/G11, so it's best to flush through thoroughly first.
I've had G13 diluted with distilled water in my GT II for over a year, and so far no issues.