Catch can for 2016 Suburban Works

[Chevy_Sucka]

The catch can works! Especially in the cold winter of the Adirondacks in NY. After a r/t of 650 miles to Lake Placid mostly highway up the NYS Thruway. Results were a full can after r/t. The construct was 80% light color and 20% black oil color. In warm weather only about 3/4" and no 'light color' just black oil color.

[Z45]

Thats more condensation than oil likely the result of heating cooling cycles of the catch can.......If you engine was ingesting that it would have died long ago.

Edited September 12, 2021 by elcamino

[Chevy_Sucka]

Yes. the mfr of the can said Sulfuric Acid condensation is high in the winter.