Register FAQ Members List Calendar Search Today's Posts Mark Forums Read   Cars Lounge > Cars Lounge > Porsche 100 Octane fuel question User Name Remember Me? Password   Thread Tools Search this Thread Display Modes   #1   09-11-2006, 08:12 PM laz Junior Member   Join Date: Jan 2005 Posts: 26 100 Octane fuel question 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 View Public Profile Find all posts by laz Add laz to Your Buddy List   #2   09-12-2006, 06:21 AM Jim Keenan Junior Member   Join Date: May 2005 Posts: 52 100 Octane fuel question "Laz" <lazgara@comcast.net> wrote in message news:450633a8$0$6598$9a6e19ea@unlimited.newshostin g.com... Quote: 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 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. Jim Keenan View Public Profile Find all posts by Jim Keenan Add Jim Keenan to Your Buddy List   #3   09-12-2006, 11:44 AM Holden McThynge Junior Member   Join Date: Oct 2004 Posts: 59 100 Octane fuel question "Laz" <lazgara@comcast.net> wrote in message news:450633a8$0$6598$9a6e19ea@unlimited.newshostin g.com... : 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... Holden McThynge View Public Profile Find all posts by Holden McThynge Add Holden McThynge to Your Buddy List   #4   09-12-2006, 04:38 PM Rob Muller Junior Member   Join Date: Mar 2005 Posts: 8 100 Octane fuel question On Tue, 12 Sep 2006 21:44:19 +0200, "Low Life #3" <holden_mcthynge@hotmail.com> wrote: Quote: Aral (a unit of BP) and Shell both market 100 octane here in Germany, butthe guys at the Porsche Zentrum Frankfurt say stick with the 98 octane stuffunless you actually enjoy pissing money away. They further add that whenyou absolutely must refuel and 98 octane is not available then 95 octanewill do and then mix in some 100 at the first opportunity... 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 Rob Muller View Public Profile Find all posts by Rob Muller Add Rob Muller to Your Buddy List « Previous Thread | Next Thread » Thread Tools Search this Thread Show Printable Version Email this Page Search this Thread: Advanced Search Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off Forum Jump Please select one User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home -------------------- Cars Lounge     General     Acura     Alfa Romeo     Audi     BMW     Dodge     Ferrari     Fiat     Ford         Ford Explorer         Ford Falcon         Ford Festiva         Ford Flathead         Ford Focus         Ford Mustang     GM         GM Cadillac         GM Cadillac Deville         GM Camaro         GM Camaro Firebird         GM Chevy Malibu         GM Corvette         GM Fiero         GM Oldsmobile         GM Pontiac     Honda     Hyundai     Infiniti     Isuzu     Jaguar     Kia     Lexus     Mercedes Benz     Mini     Mitsubishi     Nissan     Peugeot     Porsche         Porsche 911         Porsche 928         Porsche 944     Rolls Royce     Saab     Subaru     Toyota         Toyota Camry         Toyota MR2         Toyota Prius     Volkswagen         Volkswagen Beetle     Volvo All times are GMT -8. 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