I used this on my daughters ER5 and it was fine. I would prob feel ok useing it on the gen 1 as well.
as for how much to use, haynes says 2.4 ltrs
I just use whatever I can get my hands on. Can't see why you ccouldn't Halfords stuff. 2.5ltrs from memory but I can check my manual if you want exact figure?
Lol that's saved me a job!
I decided to pop my radiator off and paint it and the grill.
So needed some paint and anti-freeze.
Needed some paint quickly so bought it in Halfords (ouch!)
I looked at their long life anti-freeze, 2ltrs for 14 quid.
I popped round the corner to the VW dealer and bought 1.5ltrs for 8 quid.
Yes Halfords prices are utterly shocking unless you have a trade card. I think I bought 2, 1 ltr bottles premixed from my local Morrisons petrol station last month for 4 quid.
i always use vauxhall long life anti freeze,i do get it cheap which helps but it is a lot cheaper than halfords