YOUR RESEARCHTop Off Coolant with Full Strength - Help
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My 996 C2 coolant level was quite below the MIN line so I topped it off to the MAX line today with Pentofrost SF (about 1.25 liter). I just realized it was full strength and I should have diluted it with 50% distilled water Can I suck out .625 liter of it and add .625 liter of distilled water to fix this? Do I need to do a coolant flush? Please help, thanks.
Nah, don't bother. You got 6 gal of coolant in the engine. 1L is negligible. Next time you can even just top off with distilled water. Just make sure your cap ends with .04 (latest) and keep monitoring the coolant level for a few wks.
Thanks, I'll just leave it alone then. I have the .01 cap so I will be ordering the .04 cap, and hopefully that will solve the low coolant level issue. I just got the car a week ago and learned about the cap issue here.
If you are really concerned, simply drop a couple of litre into a catch pan and top the system off with distilled water. That should do it.
You're fine. The mixture is 50/50 or a little bit more antifreeze in colder climates. The small amount you added isn't going to adversely affect the overall 6 gallons. 50/50 = 11 liters distilled water / 11 liters pure Porsche antifreeze. You now have (assuming your 1.25 liter add is accurate) 10.375 liters water / 11.650 liters antifreez. or 47/53 ratio which is within the acceptable range.
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