[DML] Re: catalytic converter question

["content22207" <brobertson@xxxxxxxxxxxx>]

David T may be old enough to remember when there were quality
differences between low octane and high octane gas (how old are you
David?). In the bad old days "high test" was refined differently. Some
people called it "white gas" because it didn't glue up your carburetor
the way lower rated fuels did (octane has no effect on gum and
varnish). That could have affected his answer.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "Tom" <tomcio@xxxx> wrote:
> Hello all
> 
> This question is IMPORTANT for all DeLorean owners even though it is
> directed to David Teitelbaum.
> 
> ----- Original Message ----- 
> From: "David Teitelbaum" <jtrealty@xxxx>
> 
> 
> <SNIP>
> > Get rid of the 87 octane and put 91 or higher in for the test
> <SNIP>
> 
> David, why do tell people to use 91 octane fuel? You are wrong! You
are in
> the USA and you have different method for determining the octane
rating than
> Europe. What is 91 in Europe is the same as 87 in the USA. This has been
> discussed on the DML many times before but it seems that some people
still
> make that mistake. If you use higher octane gas it will cause the HC
to go
> UP!! Higher octane fuel burns slower and because our PRV is designed
for 87
> the gas doesn't have enough time to burn completly.
> 
> USE 87 OCTANE GAS IN YOUR DELOREAN!! It was designed for 87 and higher
> octane rating fuel is doing more bad than good. So if you need to
pass your
> emissions test you should use LOWER rating gas, but not lower than the
> engine was designed for.
> 
> Looking at the owner's manual for the DeLorean (PDF version) we find the
> follwing:
> Page 40
> ---------------
> Fuel Requirements
> U.S.A.
> 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)
> ---------------
> 
> For the interested: the difference in octane rating comes from different
> methods used to determine the octane number. In Europe it is a RESEARCH
> method. In the US the is R+M/2 (research + motor / 2) - you can find
it on
> every gas pump next to the octane rating. Because of the different
methods
> 91 in Europe is THE SAME as 87 in the US.
> 
> Let's hope this will clear up this confusion... until the next time.
> 
> This of course applies to stock PRV engine. If your engine runs
really bad
> on 87 it means that there's something wrong with it.
> 
> Tom Niemczewski
> tomcio@xxxx
> VIN 6149
> Save the dream so you can live the dream...




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/