Just bought some pink Alde G13 fluid to top up the heating system on my 2018 van and discovered it has the old 2 year blue fluid. Genuine Alde fluid is expensive and after looking on the net, a lot of people are using suitable car antifreeze.
I'm looking at the Comma G40 that has the correct Si-OAT spec. I've just bought a 12 volt submersible pump to pump out the old and put in the new.
Anybody used any different brand of fluid?

I think the 5 year stuff is G13++, I got mine from Euro Car Parts, under £20 for 5 litres delivered. I think it was Comma.

You will need some bits of tubing and adaptors.

Ian

Thanks Ian. I know there is G12++ which then went to the G13. Just watched a video of a home service guy with a big tub of G40 doing a caravan on some ones drive. Think I will go with that. Thanks.