I found this site. Sound pretty convincing.
http://www.promopress.com/How-ToPart2/HOW-...N-YOUR-CAR.html
and also this
http://www.synlube.com/serv05.htm#020211
not sure if it's helpful or not. But here you go anyway.
http://www.promopress.com/How-ToPart2/HOW-...N-YOUR-CAR.html
and also this
http://www.synlube.com/serv05.htm#020211
not sure if it's helpful or not. But here you go anyway.