[DML] Re: Failed emmissions AGAIN
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[DML] Re: Failed emmissions AGAIN



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,
>









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