pac1085

I'm waiting for a radiator pipe to come in from the dealer and put some of it in in the meantime. It says it works with anything..premixed 50/50

roman_0028QMS

I have been running regular store bought coolant, which was a 50/50 premix and I have been running it for about 2 years, with no problems... Its up to you.

MyaLover

Not good, when G-12 is mixed with other coolant, it gums up. Get it out!

pac1085

the coolant that was in there was all full of rust chunks and was brown. I need to get it power flushed after I fix the leak

JA4T

G-12 was designed specifically for all-aluminum engines. G-12 must NEVER be mixed with any other coolant. Engine damage will result. G-12 is red in color. The mixture of G-12 and other colored coolants is immediately identifiable by discoloration (brown,purple etc.). If this mixture is used in an engine, a foamy deposit will appear in the expansion tank/radiator. If this is done, it should be drained immediately and the cooling system should be flushed. VW changed the head gaskets mid-production in 1997, and G11 didn't agree too well with the new head gasket material. The new head gaskets are all metal. G12 is only in the cars with the new head gasket. I wonder if this is true for Audi, I imagine so. You should only use G-12...no mixing, no substitutes.
J

AudiQmann

I used the GM (Orange) and no issues.