Anyone else adding Coolant

[01Romanss]

I am constantly below max on the coolant reservoir. It may take several weeks but it slowly gets lower and I add 15-20 ounces. This is on my 2019 PP1 and my wife’s 2018 non PP1.

There’s no visible leaks and no water mixing with oil in the crankcase. Both cars are under 16K miles.

Any ideas. It should be a closed system. Where’s it going?

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[CJJon]

Somewhere. I had a leak in the seam of the expansion tank. It seeped down onto the fan and was atomized. Drove me nuts finding it.

 

[ice445]

Yeah, there's a leak, but it's probably something really tiny and hard to see. You can try putting UV dye in the system to help find it, or run a pressure test and see if you hear anything.

 

[engineermike]

My 2018 pp1 does the same.

 

[abmobil]

Same with my 17 GT. Mine is boosted so I wasn’t sure if it was related to all the work. I’ve been watching it carefully. Seems to drop a bit under max and then settle.

 

[Zrussian13]

Mine as well. It doesn't loose much but in 50k miles I've probably added just under a gallon or so topping it off over the course of a few years.

 

[Elp_jc]

New cars will always have air in the system, so you have to top them off. Mine was below the 'min' line with only 60 miles. Made dealer top it off before I test drove it, and have topped it off twice more in 4,500 miles, but only from the middle (thick) seam to the max line, so not that much. It should be pretty much stabilized at this point.

 

[Kong76]

My 16' does as well.

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