[Healeys] gas additives

[Warthodson at aol.com]

I am surprised that the Aston would need an octane booster with an 8.3 to 1  
compression ratio. 
Gary Hodson 
 
 
In a message dated 5/3/2008 9:39:13 A.M. Central Daylight Time,  
rdavies1 at cox.net writes:

 
The DB7 is 8.3 to  1. 
Not sure of the BJ8.  10:1 I think. 
Ron 
 
  
____________________________________
 
From:  Warthodson at aol.com [mailto:Warthodson at aol.com] 
Sent: Saturday, May 03, 2008 5:41  AM
To: rdavies1 at cox.net; ah3000me at gmail.com;  Healeys at autox.team.net
Subject: Re: [Healeys] gas  additives
 
What are the  compression rations of the two engines? 
 
Gary  Hodson
 

 
 
In a message dated  5/2/2008 8:03:57 P.M. Central Daylight Time, 
rdavies1 at cox.net  writes:

I've always put 91  in my 67 BJ8 and it runs fine.
I can tell you that putting octane booster  in my Aston Martin turned out to
be a very, very costly mistake. The DB7  was designed for 92 octane and as
you say it isn't available anymore. My  choices were between adding 2 gallons
of 100 octane to every tank of 91  at $8/gal or using the booster that the PO
suggested.

Well, the additive fouled the  ridiculously expensive platinum plugs which
the computer tried to  compensate for and fried two sets of even more
expensive coil packs (a  separate coil for each plug) and some other rare
electronic gizmo I have  successfully cleared from my memory. Something like
a crank shaft sensor  but in British terminology.

The AM dealership said "Duh" NEVER use  octane additives, injector cleaners
or similar stuff. Now I add the  racing fuel every other tank and everything
is fine. The car just  screams. I'm not about to use it in my 67 BJ8 after
that experience.  
Ron 
SoCal
67 BJ8
97  DB7

---------------------------------
I started using fuel  injector/carb cleaner back in the 90's.  A local Honda
dealer in MD  recommended it to a friend after they replaced all the fuel
injectors in  his Prelude.

Anyway,  anyone else noticing the demise of 93  octane gas?   Last summer the
local Shell station switched from  93 to 91 octane high test. Today on my way
home, I stopped at the Mobil  station which sold 93 octane gas, and they had
a 91 octane sticker pasted  over the 93 octane pump.    I think Gulf is the
only one left  in my area still selling 93 octane.

-  Tom
Healeys at autox.team.net
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