<<This is exactly what Charles Navarro from LN Engineering (the guy who got the ball rolling on the problems with the lack of ZDDP) said.>> He wasn't the only one, Larry. The is a VERY well penned article from '07 by Keith Ansell who IS in our 'field' on my site in "Various Articles" that I recommend ALL read. Ed Please visit MY site at: www.justbrits.com