My experience has been the same as Tom's, and I'm sure others. Whereas you may have to have a valve job at say 100,000 miles on a well kept car with leaded gas, you may go only 80-85,000 with the new unleaded fuel with normal driving. Drag racing and heavy towing will wear the valves a little faster. So unless you constantly tow with or race the car, no worries!! ------------- Date: Fri, 15 May 2009 08:55:23 +0200 From: "gerrie" <brenlin@xxxxxxxxxxxxxx> We have unleaded and lead replacement fuel in South Africa, I am using the lead replacement in the Rambler, but that is going to dissapear in a year or two. Question is, can I use unleaded or will I have to do some mods, Our unleaded fuel is 93 octane and we live in central SA 5000ft above sea level. Mine is a 232 six in a 1969 Rogue. -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For all AMC enthusiasts http://farna.home.att.net/AMC.html (free download available!) _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com