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Old 11-09-2020, 11:07 AM   #20
CRBWS6's Avatar
Drives: 2018 White 1SS 1LE SCCA BS
Join Date: Dec 2017
Location: PHX
Posts: 34
Evaporation Rate?

What type of evaporation rate are others seeing from the lower tank?

My upper and lower tank looked exactly like the OP's when I bought the car a few months ago.

I filled the upper tank and brought the bottom tank to fill line per the manual. This was 36 oz total add of 50/50 Dex.

Now, 1000 miles later the level has dropped about 1/2" - 3/4" below the fill line in the lower tank.

How does this compare? It seems like a greater rate of evap than my other vehicles with vented overflows.
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