[DML] Re: catalytic converter question

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

I understand exactly what you are saying about the way the octane
rating is calculated. It has been my experience that going up with the
octane helps pass emissions testing. It also seems to help with fuel
efficiency but not enough to justify the increase in price. I cannot
give you a scientific reason for it. My guess is that the additives
used to increase the octane make the fuel burn more completly. I
notice I get better gas mileage on a tank of higher octane than lower
octane. I do not say you need to use 91 octane on a regular basis but
it has been my observation that it does lower HC if you go with the
higher octane. These are my observations and opinions and everyone is
allowed to agree or disagree. I say try it, it can't hurt. If you
don't notice any diffference than at least you know you are not
missing anything. Generally if you do fail emmisions testing changing
the octane of the gas you use won't cut it. At least it should be
fresh. If you still fail then you HAVE to find and fix the problem.
David Teitelbaum
vin 10757



--- 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>
> 
> 





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