Whipple coolant leak?

[NewTekBuzz]

i have a 2019 GT with a 3.0L stage 2 whipple. every3-4 months I have to add about 2-3oz of coolant to get it to register at the low mark. ive done this twice since owning the car. I do not see any signs of a leak. to me, doesnt seem normal that it would use any coolant.
car has about 7800 miles on it and whipple has been on since 5000 miles.
I filled it last night and marked it on the spout. this morning is was about 5/16" lower. I have not started the car since adding it.
ideas?
TIA
TIM

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[Autojvnkie]

The 5/16" overnight drop without starting the car confirms fluid is actively escaping..