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Join Date: Oct 2014
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draining coolant

The bit i am worried about is if i leave a few litres of coolant in the system,i am not sure what coolant to put in, (Porsche coolant or aftermarket) as not sure whats been in there.All i know is it is pink and its been in there since i got the car which was 5 years ago,also it had an engine rebuild a year before that so i would think it was changed then
Old 12-29-2017, 09:44 AM
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Originally Posted by porschedavid View Post
The bit i am worried about is if i leave a few litres of coolant in the system,i am not sure what coolant to put in, (Porsche coolant or aftermarket) as not sure whats been in there.All i know is it is pink and its been in there since i got the car which was 5 years ago,also it had an engine rebuild a year before that so i would think it was changed then
If you are concerned about mixing coolants, dump your system and refill with clear water, run the car, dump again. Done three times will remove all traces of the old mix.
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Old 12-29-2017, 12:06 PM
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A VERY bad idea. People have been talking this up for years, while those that have actually tried it quickly found out where it comes apart, literally.
Shop tried that on mine. Jacked up the pressure and cracked the air oil separator. Claimed that the air pressure had nothing to do with it. Yeah right. It just magically started to leak once you did this. Needless to say, they don't touch my car anymore.
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Old 01-17-2018, 12:34 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #23 (permalink)
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Originally Posted by JFP in PA View Post
If you are concerned about mixing coolants, dump your system and refill with clear water, run the car, dump again. Done three times will remove all traces of the old mix.
It's quick and fairly thorough if you take out the thermostat after you drain the old coolant, then fill with water, run the engine (no need to wait for the engine to warm), drain and repeat. Replace the thermostat once you're satisfied you've removed almost all the old coolant, then fill with new coolant.

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Old 01-22-2018, 08:24 PM
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