It is my belief that recommendations such as this are a bit of an over simplification. I suggest one use that grade which gives (or seems to give) the best performance, or even comfort level. A number of factors can influence that decision. Do you drive "hard"? At what altitude do you do most of your driving (we don't all live at sea level). Has the car been modified in any way? ETC., ETc.!! Use the grade that gives you the performance you want and listen carefully for detonation. If you experience pre-ignition, move up a grade and make sure your car is properly tuned. Dick Ryan --- James <tomciodmc@xxxx> wrote: BIG SNIP - - - - > Use 87 if you are in US and Canada. Use 91 if you > are in Europe. > I hope this clears up the confusion. > > Tom Niemczewski > VIN 6298 (FOR SALE) > tomciodmc@xxxx > > > ----- Original Message ----- > From: "mccarthy410" <mccarthy410@xxxx> > > > Hi, > > > > I am a new prospective owner of a DeLorean, before > I buy, I'm > > gathering all info I can. One question comes to > mind, I know the > > manual and several sites say to use 91 Octane > fuel, only thing close > > to it is 93, and that does get expensive. Can > 87 or 89 Octane be > > used with no ill effects? I'm told how the > Europeans and how the U.S. > > rates gasoline are two different things, any > truth to this? > > > > Thanks. > > > > > To address comments privately to the moderating > team, please address: > moderator@xxxx > > To search the archives or view files, log in at > http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > __________________________________________________ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com