Hi,
Anyone ever use 100 octane fuel on their 911?
What is the effect?
There is a Sunoco station on my way to work that sells the stuff at 7.99 per
gallon.
I am just curious?
TIA
Laz

"Laz" <lazgara (AT) comcast (DOT) net> wrote

My 2002 996 was designed for 93 octane, but here in southern California 91
is the highest widely available pump grade. I mix Sunoco 100 into the tank
at the ration of 2 gallons 91 to 1 gallon 100 and get 94 in the tank.

Subjectively, the cars seems to have more punch, particularly in the higher
RPM range where the engine makes max horsepower, but I haven't done any
scientific measurements. What the fuel should do is allow the engine to
operate as it was designed, rather than adjust itself to run on lower
octane.

"Laz" <lazgara (AT) comcast (DOT) net> wrote

: Hi,
: Anyone ever use 100 octane fuel on their 911?
: What is the effect?
: There is a Sunoco station on my way to work that sells the stuff at 7.99
per
: gallon.
: I am just curious?
: TIA
: Laz
:
Aral (a unit of BP) and Shell both market 100 octane here in Germany, but
the guys at the Porsche Zentrum Frankfurt say stick with the 98 octane stuff
unless you actually enjoy pissing money away. They further add that when
you absolutely must refuel and 98 octane is not available then 95 octane
will do and then mix in some 100 at the first opportunity...

On Tue, 12 Sep 2006 21:44:19 +0200, "Low Life #3"
<holden_mcthynge (AT) hotmail (DOT) com> wrote:

Note that the octane numbers in Germany are RON. It seems the original
poster is based in the US where PON is used.

http://www.cosbyoil.com/RaceFuel/racegas.htm
According to this site the Sunoco GT 100 fuel has a PON rating of 100,
this is even several points higher on the RON scale.

Some info about octane:
http://en.wikipedia.org/wiki/Octane_rating

Rob