I used it for some time in a 1989 3.0 V6 Aerostar (before switching to synthetic oil)and sold it at over 300,000 miles), and installed it not only in the engine, but PS. It is in my current 4.0 Aerostar in the PS unit, awd diff. and transfer case. Over 170,000 miles and all is well. Great product IMO.
BTW I now use Synergyn 0W-20 oil in my three current engines. More HP, More MPG. They run sooooo sweet on this oil..
[ January 07, 2003, 12:37 PM: Message edited by: tenderloin ]