both. the Banks idea of a turbo oil drainback is a joke at best. I'm really not in the mood to re-engineer it on a vehicle that sees winter use for the ski slopes. As long as it gets my daughter to the ski slopes and me into the lodge to flirt with the MILFs, it's doing it's job as far as I am concerned.ouch.. a banks issue or a "im too lazy to fix it" issue?