REFLECTOR: 11,500 data for the DH engine

[John Dibble]

Avgas varies because of the climate differences.  In the North a lower freeze point is
needed, so a paraffinic based fuel is used.  In the South an aromatic base is used.
You can easily smell the difference.  Presumably engine performance is the same.

John

gattenby at gbronline.com wrote:

> I don't know about diesel...
> But for car gas most of below is true.
> The gas the Texico in houston puts in the pipeline is very
> much
> like the gas that Sunco puts in the pipeline system here in
> tulsa.
>
> The differance in the gas at the pump is that as they put
> gas in the tanker truck for delivery to the individual store
> they put in a wide variatiy of additives many of them "brand
> specific".
>
> I know that diesel has additives such as anti-gell, do these
> addiditives vary from brand to brand? season to season?
> state to state?
>
> as JP stated jet A is supposed to be jet A around the world.
>
> noel
>
> ----- Original Message Follows -----
> From: John Dibble <aminetech at bluefrog.com>
> To: Velocity Aircraft Owners and Builders list
> <reflector at tvbf.org>
> Subject: Re: REFLECTOR: 11,500 data for the DH engine
> Date: Fri, 13 May 2005 07:15:29 -0500
>
> > All fuels are made by the same refineries and the same
> > individuals operating the refining units.  It makes no
> > sense that specs for one product are adhered to while for
> > another ther're not.  Sometimes fuel made by one refinery
> > is sold under the name of another refinery because of
> > logistics, so brand names guarantee nothing, except that
> > all brands meet the specs.  There are several grades of
> > diesel, but only those acceptable for engines are found at
> > auto pumps.
> >
> > John
> >
> > jp211 at comcast.net wrote:
> >
> > >  Not in a water pressure contest here over "a rose by
> > > any other name" but when I hear "diesel" to me it means
> > > lets pull over and get some Texico stuff for the bird.
> > > When I hear "Jet-A" I hear a product that has very
> > tighly held specs just as 100LL or Avgas.Jet-A in Racine
> > > will be nearly the same quility as other Jet-A in
> > > Nirobi.  Diesel fuel in Racine can vary from Texico to
> > > "Brand-X, and get a 6 pack to go" to Costco fullup.  Do
> > > you know what your getting is all.  Now I will crawl
> > back to my room here in Tokyo and wait for the words
> > ,Thanks\JP
> >
> >
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