TOY: RE: Fuel injection cleaning / getting hard to start

[Richard Eddy <rweddy1@xxxxxxxxx>]

I could not agree with you more, depending on where
you live the gas is formulated for you climate,
altitude, etc. This is why in Colorado 85 is the
lowest grade and in area's with lower altitude ie
Nebraska 87 is. 
The premium will have more detergents but the higher
octane is only necessary for high compression
vehicles.

I used to race jet skis and they run better on lower
octane gas with the violent explosions internal
combustion engines are supposed to have. 


Richard Eddy
87 SR5 4runner

  IMHO, like millions of other people, you are wasting
your money.  
That 
violent burning, as opposed to the smooth burning is
what gives the 
power, 
which is why a higher octane than needed can actually
decrease 
performance.  
And in all respect to you and your uncle, mixtures in
pump gas change 
constantly.  Most likley when he was studying, 92
octane was considered 
low 
grade, and high grade was called 100+.  And, yes, they
add more 
cleaning 
agents to premium.  That's part of why you pay more. 
Like I said, if 
you 
are worried about being clean, go to Chevron and by a
big jug of 
Techron.
  TIFWIW.
Brandon

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From owner-toyota@www.4x4wire.com Thu Aug 22 14:27:22 2002
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Date: Thu, 22 Aug 2002 14:27:00 -0500
To: toyota@4x4Wire.com
From: John <jstowers@austin.rr.com>
Subject: TOY: Re: Fuel injection cleaning / getting hard to start - octane
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>I used to race jet skis and they run better on lower
>octane gas with the violent explosions internal
>combustion engines are supposed to have.

But those were 2 strokes? Different beasts.

One thing I have not seen in this thread but heard elsewhere is that some 
engines adjust advance and other parameters to prevent or reduce 
detonation. It would seem in this case lower octane might not seem to be 
causing problems but would be reducing engine performance.

Can you advance timing further with higher octane and not get detonation? 
Been a while since I messed with going outside of factory specs and that 
was on 60's muscle car engines. Those engines definitely had different 
design characteristics than the ones in our Toyotas. Any benefit to doing 
that on my 86 22re?

In general I have always been of  the belief that running higher than 
necessary octane is at most a waist of money and will not hurt performance 
in anyway. That is the story I am sticking to. John



From owner-toyota@www.4x4wire.com Thu Aug 22 20:56:46 2002
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From: "Mark Rexrode" <mrexrode@ieee.org>
To: <toyota@4x4Wire.com>
Subject: TOY: EFI intakes
Date: Thu, 22 Aug 2002 21:56:40 -0400
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What's the deal with all of these 'Intake Adapter W/Filter' that you see
constantly on E-bay?  The look similar to the K&N filter, but the adapter
looks much simpler (cheaper.)  Has anyone tried these to see if there is any
performance improvement??

Regards,
Mark Rexrode
'90 Toyota 4x4 Truck
'31's, Lockrite, etc....