Coolant 718 gt4 or gts 4.0

[G40R_JL]

Quick coolant question for owners…not had any warning lights but noticed coolant was below min when fully cold in the fill funnel (ie float not floating). Added 300 ml of 50/50 coolant/distilled and that brought it to 2/3rds of the way to max. Left overnight and checked next day. Below min. This time just 30 ml moved it to max (so must have been on cusp of min before). Drove car for 30 mins all ok. 10 hrs later checked and float just above min. Checked again next morning and float is at bottom again so below min.

Manual is a bit confusing. My question is in your 718 GT4s is your float floating between min and max or like mine not registering.

Ps no sign of leaks or high temps. Car is new on 1200 miles.

Thanks

[scrounger73]

No idea tbh as I've never checked the coolant however if the tank is overfilled the expansion tank will burp some coolant out. There is a drain pipe on the rim of the coolant neck so have a look for a small pool of coolant under the car.