Same here, and I almost have 200,000 miles on her. According to Prestone, their green stuff will not damage the engine and or gaskets.
for vw's; i prefer using the 50/50 coolant from the dealer my gf's 2.0 had a small leak for months and we just kept on topping it off with the pepboys stuff-- but once i replaced the thermostat housing you can see corrosion in the hoses and the old housing -the coolant from vw is quite different than aftermarket brands (you can really tell just from its thickness-- i suggest forking the dough over for the vw stuff -other cars; i don't know
G12 may cost 12 bucks a gallon, but you only need one gallon and the manual states it is good for the life of your vehicle.
i run the G12 - every vw i ran G11 in, the coolant broke down after 5k miles, but the minute i swiched to g12, i have yet to have a problem
The mk3 came with G11 coolant. The mk4 came with G12 coolant. I'm running G12 in a well-flushed mk3 radiator, and I have no problems.
I'm using 50/50 orange coolant (I forget if it's Prestone or Zerex, silver bottle with an orange top) same as I've always used.
Dude just get a NON PHOSPHATE, NON SILICATE COOLANT, it does not matter who makes it or color. BTW Prestone extended life is great and what I run and u can find it for about 8 dollars a gallon, all u need. just flush it really good.
I'm using the Prestone Dexcool, It's supposed to be compatible, and i'm starting with a totally dry system.
i changed my coolant with the prestone orange stuff ( i cant rem the real name for it ) . i called a vw dealer and they said that it will work just fine. i have had no problems with mine so u should be fine
When I bought my Jetta it was filled with Prestone. One time the fan switch crapped out on me so while replacing it I did a coolant flush and decided to use G12. About 2 weeks later the car started overheating like mad.
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