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Is anyone using this?

I recently purchased some g12 plus plus coolant online to keep in the boot, however when it arrived it was G13.

Having spoke with the supplier he confirmed that G12 is no more and that this can be used to top up g12. It is a genuine VAG bottle and all new cars apparently use this as standard.

I have not needed to use it as yet, but if I do is this OK to mix or top up?

Also, there are no dilution ratios on the packaging so is it diluted?

Its typically dilutable depending on weather/temperature

It's replaced G12++, 12+ etc. They're all backward compatible and fully miscible. I got a bottle last month.

Dilution should be 40/60 - 60/40 depending on weather (the warmer the climate, the lower the additive needed). It's concentrate you get from dealers, so will need to be diluted. The label should tell you that it's just pure additive, and the correct ratios etc.