I've used G12 and Prestone in one of my Corrados. No noticeable difference in performance or running temps. I did 100% complete system flush when changing over. I like the Prestone for availability.
You can regualr coolant as long as COMPLETELY flush out the system. I ran Prestone in my Jetta with regular flushes for 3 years with no problems...an no pitting of my cyl. head
i run prestone in my 1.8T and have ran it for 6 months now ever since i put a new radiator in bc my old one cracked so my g12 was completely flushed out. no problems for me.
Installed a new Coolant Temperature Sensor Flushed cooling system Changed thermostat from 87C to 80C Installed new Radiator Fan switch 85-95C Installed new heater control valve as old valve was seeping coolant Replace all hoses
I think you should be fine. If it was the Prestone that you can add to all makes and models, that coolant is compatible with a wide variety of coolants. I have mixed that stuff with Dexcool and green stuff with no issues.
I've been using prestone in my 2.0 for 5 years with no problem. The heater will make you sweat and the cooling system works flawlessly.
I can testify that the green stuff is not that bad. my buddies 92 was getting so warm, so we decided to do a complete flush on the system. we bought the prestone system flush, and flushed it twice. when we flushed it, all this crap came out, and the fluid that came out was a MUD color. after the prestone system flush, and 3 flushes with distilled water, we put the 5/150 prestone pure coolant/antifreeze into the 92, mixed 50/50 with distilled water. the 92 ran much cooler after that. on the highway, it was about 170, and in town, it averaged under the half way. so, buy whichever you like, but either way ou do go, make sure to fully flush the system. you will see better results either way.
I have never had a problem with the green stuff. I added it a year ago (about half G12/ half green stuff) and ran like that for months with no issues. I then changed the turbo and flushed the system and found no strange foams/gels or anything like that. I have since run nothing but the green stuff with no issues.
I have mixed the yellow prestone shown above with g12 when I was in a pinch like you are. I never had any problems for almost 6 months until i flushed and refilled with good fresh g12 So you should be fine...
im running prestone premixed....i just mixed it with the leftover g12 and havent had any problems. thousands of miles have been put on my car.
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