Quote:
Originally Posted by fanaudical
My experience with VW/Audi stuff:
- The coolant does look dark to me. The Pentosin VW coolant I use stays very pink.
- The reason for the special coolant is that all the other coolants seem to eat head gaskets.
- I'd take that sample you have and just let it sit in the corner of the garage undisturbed for a week; see if there is anything floating on top after a while.
- There is usually an air purge screw somewhere in the cooling system at the high point. That said, I often find it necessary to drive a car up/down steep hills while at temp and the heater going full blast to purge all the air out of the cooling system.
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Thanks for the comments. The sample I took is sitting in my shop; I'll see how it looks after some time...
I did read about turning on the heater to help circulate the coolant, which I forgot to do yesterday. I did keep an eye on the temp. gauge and oil temp. on the way home to make sure neither spiked too high (they didn't). I'm not convinced that the coolant temp. gauge actually works though - I've never seen it go above 200 degrees.
Quote:
Originally Posted by rfuerst911sc
You said you let the car run for " a few minutes " between flushes . Did the car get hot enough for the thermostat to open ?
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Excellent question. Probably not. I probably could have been more patient and through with the flushing procedure. I was kind of stumbling through my first time doing it... will be better practiced the next time!
I bought some of this stuff to help flush out any gunk. But after draining the system the first time, I decided not to use it as I wasn't certain that I'd be able to easily flush it all out. After reading the directions, it didn't seem like the kind of stuff you'd want to leave in the system for very long...
