Backround is I retired 3 yrs ago from 20 yrs as a Lexus tech. The hi-compression engines they phased in 2006-2005 turned out to be oil burners, intake valve deposit hogs. These are cars mostly driven by regular non-performance people and still had problems due to the high compression and inadequate pcv system. Should I get an oil seperator for my wife's 15 GT w/ PP?