Originally Posted by CNY_WK2
Unfortunately with the Grimmspeed design if you corner too fast you can have oil slosh up the fill neck and be sucked into the intake. (There are threads on it on NASIOC and IWSTI).
I myself mounted Moroso Dual Catch cans(STI, have to empty myself) however you can look into the universal Crawford Air/Oil Separator, it has lines to run coolant through it to prevent freezing and it drains back to the oil sump...it is pricey though
Cornering too fast.... that would be me.
It's interesting, this catch can thing sounds so much like the device I learned of back in the '80s, called a "Condensator". I installed one in my '86 D150. It had a filter-like section filled with beads of some sort, and stuff that condensed fell into a glass jar. Every oil change I'd empty about 1/4" of dark liquid out of it. It never increased fuel economy as promised... not sure if it did anything good at all.
With ULSD, it sounds like the problems experienced in the Liberty CRD may not manifest in these 3L units. But if it does, I think I will be happy with a lifetime service contract to take care of it.