Thanks very much for the info on this, I've been using 93 for this car and my previous, will switch to 87 tomorrow. Since I put 650 miles a week going back and forth to work, this is a real cost savings. The forum is great for stuff like this to those of us that aren't very mechanically inclined. But I had what might be a stupid question: What do you mean by "less chance for detonation"??? --- In dmcnews@xxxxxxxxxxxxxxx, "Tom Niemczewski" <tomciodmc@xxxx> wrote: > > Hello Dan > > That is a very good question. And the answer to that would be that whoever > wrote the Owner's Handbook must have made a mistake or just forgot to > mention that in YOUR book. I say "your" book because mine clearly states > that in the USA 87 should be used and that 91 was for Europe. Maybe I have a > later version of the book that was updated. > Anyway, in the Owner's Book that I have there is a mention of that on page > 40. Right on top, on the right side of the page. Here's an EXACT copy of > that: > > Fuel Requirements > USA > Your De Lorean is designed to operate at factory specifications at UNLEADED > GASOLINE only of at least 87 anti-knock index (R+M/2) (91 research octane > number) > > Is this a bulletproof enough source? :) > > Of course you might say that "at least" means that it can operate on 93. And > you will be right. It CANNOT use anything less that 87 because it will cause > damage. Anything more that 87 CAN be used. 93 CAN be used without causing > immediate damage to the engine but it is a great waste of money and if the > engine is designed to operate on 87 then 93 is not as good for it. The > higher the octane number the less chance for detonation but at the same time > combustion temperatures are higher. > Use 87! Your car will be much better with it in the long run. > And the most important thing - 93 IS NOT BETTER than 87. It is just > DIFFERENT! The names "premium" or "super" are just clever marketing by the > oil companies to make the customers feel that they are getting something > better that is worth the higher price. In reality they are just the same but > meant for different engines. The car I have here in Europe runs on 95 (RON) > about 91 (R+M/2). It was designed for that gas. DeLorean was designed for 91 > (RON) which is 87 (R+M/2) > > I hope this clears things up for you a bit. And don't forget to check page > 40 in the Manual. > > > Tom Niemczewski > vin 6149 (in Poland!) > tomciodmc@xxxx > www.deloreana.com > > > > ----- Original Message ----- > From: "Dan" <djdanwilson@xxxx> > To: <dmcnews@xxxxxxxxxxxxxxx> > Sent: Saturday, December 17, 2005 10:20 AM > Subject: [DML] Re: Failed emmissions AGAIN > > > > --- In dmcnews@xxxxxxxxxxxxxxx, "Tom Niemczewski" <tomciodmc@xxxx> wrote: > >> > >> One of the reasons for your failed emissions might be the prolonged > > use of > >> premium fuel. > > > > Tom, here's another good question for you, or for anyone else that can > > address it: > > > > The DeLorean was manufactured to be sold in the United States with the > > exception of the 100 or so cars in the 17000 VIN series which were for > > Canada, right? The car was not technically for sale in Europe. That > > being the case then why would American cars intended and destined for > > sale in the U.S. market come with Owner's Handbooks that reference the > > European 91 octane rather than the U.S. 91 octane? > > > > If the 91 octane referenced in the DeLorean Owner's Handbook was the > > European 91, and not the U.S. 91, > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/