Moderator: Scirocco Register
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
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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.