Anti freeze confusion

Vince70 · 22-01-13, 07:40 PM

Hi I wonder if someone could help both my father and I have old audi's his is a 93 100 and mine is a 92 80.
Both are running pink g12 anti freeze and I've just been online and bought some for topping up both cars but bought purple G12+ by mistake.
Can I use g12+ purple with G12 pink.
Regards Vince

John. · 22-01-13, 07:49 PM

Personally I'd flush the lot and put BLUE in them.
Does it not say on the bottle what it's ok to mix with?

If both are the OAT stuff then can't see it being a problem....this might help? (http://www.btctag.org/info_/publ/btc06_637_p.pdf) ....or not !

mikes2 · 22-01-13, 07:53 PM

G12+ can be mixed with the older G11 or G12. Just don't mix G11 and G12.

Dealers are now selling G13

shaun5 · 22-01-13, 09:02 PM

Quote:

Originally Posted by John.

Personally I'd flush the lot and put BLUE in them.
Does it not say on the bottle what it's ok to mix with?

If both are the OAT stuff then can't see it being a problem....this might help? (http://www.btctag.org/info_/publ/btc06_637_p.pdf) ....or not !

I know with my S2 you shouldnt really use Blue antifreeze. It should be G12 Pink/Purple
Is it to with aluminium heads?

John. · 22-01-13, 09:19 PM

Quote:

Originally Posted by shaun5

I know with my S2 you shouldnt really use Blue antifreeze. It should be G12 Pink/Purple
Is it to with aluminium heads?

Not sure about that, I know the blue stuff is meant to be better for the water pump(seal?).
I've always used blue....maybe I've been lucky

J.

mikes2 · 22-01-13, 10:52 PM

When your S2 was new, it was filled with G11 from the factory.

Vince70 · 23-01-13, 07:40 AM

Thanks for the help guys, I've now looked under the bonnet of my 80 and my A4 and my parents 100 and all the cars are running on pink G12.

The 80 had a recent cambelt change so I think that's why it's using G12 also my parents old 100 also had a belt change at audi a few years back so I guess audi must have just used G12 at the same time as that was the recommended antifreeze at the time but now G12+ purple has superseded it.

Also my old A4 shed is running pink G12 but being that its only 18 years old its most probably on the original stuff lol.

It looks like its ok to use the G12+ as its designed to be compatable with g11 and g12 it just means when topping up it will be a purple/pink colour rather than pink.

As someone said earlier you should never mix the pink G12 with blue G11 but the purple G12+ is ok to mix with both the blue and pink.

John. · 23-01-13, 08:14 AM

The links below are worth a read........

http://www.blauparts.com/vw/vw_fluid...ne_fluid.shtml

http://www.da7c.co.uk/technical_torq...antifreeze.htm

I'm dubious about the whole G11 G12 thing (no G13-are they superstitious and so called it G12+) . Could it just be a money making plan

ChrisG · 23-01-13, 01:49 PM

interesting read on the Blau site.

22-01-13, 07:53 PM	#3
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	G12+ can be mixed with the older G11 or G12. Just don't mix G11 and G12. Dealers are now selling G13 __________________ 1991 90 quattro 20v sport 1991 90 quattro

22-01-13, 10:52 PM	#6
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	When your S2 was new, it was filled with G11 from the factory. __________________ 1991 90 quattro 20v sport 1991 90 quattro

22-01-13, 07:49 PM	#2
John. 4 ring whore! Classic Audi Club Member Join Date: Mar 2011 Location: Scottish Borders. Posts: 7,538	Personally I'd flush the lot and put BLUE in them. Does it not say on the bottle what it's ok to mix with? If both are the OAT stuff then can't see it being a problem....this might help? (http://www.btctag.org/info_/publ/btc06_637_p.pdf) ....or not !

23-01-13, 07:40 AM	#7
Vince70 Grown up member Join Date: Aug 2012 Location: East Sussex Posts: 66	Thanks for the help guys, I've now looked under the bonnet of my 80 and my A4 and my parents 100 and all the cars are running on pink G12. The 80 had a recent cambelt change so I think that's why it's using G12 also my parents old 100 also had a belt change at audi a few years back so I guess audi must have just used G12 at the same time as that was the recommended antifreeze at the time but now G12+ purple has superseded it. Also my old A4 shed is running pink G12 but being that its only 18 years old its most probably on the original stuff lol. It looks like its ok to use the G12+ as its designed to be compatable with g11 and g12 it just means when topping up it will be a purple/pink colour rather than pink. As someone said earlier you should never mix the pink G12 with blue G11 but the purple G12+ is ok to mix with both the blue and pink.

23-01-13, 08:14 AM	#8
John. 4 ring whore! Classic Audi Club Member Join Date: Mar 2011 Location: Scottish Borders. Posts: 7,538	The links below are worth a read........ http://www.blauparts.com/vw/vw_fluid...ne_fluid.shtml http://www.da7c.co.uk/technical_torq...antifreeze.htm I'm dubious about the whole G11 G12 thing (no G13-are they superstitious and so called it G12+) . Could it just be a money making plan

23-01-13, 01:49 PM	#9
ChrisG Senior Member Classic Audi Club Member Join Date: Dec 2007 Location: Bracknell, Berks. Posts: 1,465	interesting read on the Blau site.