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st184 sillycar Forums Junkie Location: Melbourne Registered: June 2004	Re: Higher RON Fuels: Did you know? Wed, 15 June 2005 09:56 As I see it, it all depands on how "smart" your car is. older carbied, distributer ignited cars will have a minimum RON needed to avoid pinging. Feeding the old girl fuel with a higher octane rating (but the same energy density) shouldn't have a noticeable benefit. Newer EFI-run cars are a different kettle of fish. A particularly clever computer can run at near-optimum on a huge range of petrols. The GenIII for exapmle constantly adjusts ignition advance, injector duration AND injector phasing according to the conditions. This "making it up as it goes" automatically adjusts for fuel RON. Did I mention teh GenIII calculates exhaust temp & heat-soak, to prevent cat-cooking and piston damage? Pretty good eh? - although the masses of extra fuel it dumps into the ports to keep things cool REALLY kills fuel economy wen towing big, heavy trailers. Stupid dumb fuel prices. [Report message to a moderator]

	Subject	Poster	Date
	Higher RON Fuels: Did you know?	Matt-itude	Sun, 12 June 2005 09:11
	Re: Higher RON Fuels: Did you know?	justcallmefrank	Sun, 12 June 2005 09:15
	Re: Higher RON Fuels: Did you know?	Matt-itude	Sun, 12 June 2005 09:34
	Re: Higher RON Fuels: Did you know?	justcallmefrank	Sun, 12 June 2005 09:36
	Re: Higher RON Fuels: Did you know?	GBC_069	Sun, 12 June 2005 10:00
	Re: Higher RON Fuels: Did you know?	justcallmefrank	Sun, 12 June 2005 10:02
	Re: Higher RON Fuels: Did you know?	river	Sun, 12 June 2005 11:07
	Re: Higher RON Fuels: Did you know?	ae86drift	Sun, 12 June 2005 11:32
	Re: Higher RON Fuels: Did you know?	Matt-itude	Sun, 12 June 2005 18:40
	Re: Higher RON Fuels: Did you know?	river	Mon, 13 June 2005 05:40
	Re: Higher RON Fuels: Did you know?	thu187	Sun, 12 June 2005 12:23
	Re: Higher RON Fuels: Did you know?	TRD_Supra	Sun, 12 June 2005 13:35
	Re: Higher RON Fuels: Did you know?	no_tofu_speed	Sun, 12 June 2005 14:09
	Re: Higher RON Fuels: Did you know?	TRD_Supra	Sun, 12 June 2005 14:48
	Re: Higher RON Fuels: Did you know?	Corona RT142	Sun, 12 June 2005 23:52
	Re: Higher RON Fuels: Did you know?	TRD_Supra	Mon, 13 June 2005 02:07
	Re: Higher RON Fuels: Did you know?	Arch	Mon, 13 June 2005 02:38
	Re: Higher RON Fuels: Did you know?	Corona RT142	Mon, 13 June 2005 03:01
	Re: Higher RON Fuels: Did you know?	jeffro RA28	Mon, 13 June 2005 03:48
	Re: Higher RON Fuels: Did you know?	Toobs	Mon, 13 June 2005 05:53
	Re: Higher RON Fuels: Did you know?	river	Mon, 13 June 2005 06:12
	Re: Higher RON Fuels: Did you know?	Toobs	Mon, 13 June 2005 06:28
	Re: Higher RON Fuels: Did you know?	CLG	Mon, 13 June 2005 06:42
	Re: Higher RON Fuels: Did you know?	towe_001	Wed, 15 June 2005 00:02
	Re: Higher RON Fuels: Did you know?	trevtrev	Wed, 15 June 2005 03:18
	Re: Higher RON Fuels: Did you know?	CLG	Mon, 13 June 2005 06:17
	Re: Higher RON Fuels: Did you know?	river	Mon, 13 June 2005 06:54
	Re: Higher RON Fuels: Did you know?	bmews	Mon, 13 June 2005 11:12
	Re: Higher RON Fuels: Did you know?	Rainey	Mon, 13 June 2005 13:35
	Re: Higher RON Fuels: Did you know?	bmews	Tue, 14 June 2005 02:30
	Re: Higher RON Fuels: Did you know?	Shraka	Wed, 15 June 2005 03:12
	Re: Higher RON Fuels: Did you know?	st184 sillycar	Wed, 15 June 2005 09:56
	Re: Higher RON Fuels: Did you know?	trd3sg	Sun, 19 June 2005 06:44
	Re: Higher RON Fuels: Did you know?	st184 sillycar	Thu, 16 June 2005 10:06
	Re: Higher RON Fuels: Did you know?	jeffro RA28	Tue, 21 June 2005 11:52
	Re: Higher RON Fuels: Did you know?	Nark	Wed, 22 June 2005 08:14
	Re: Higher RON Fuels: Did you know?	riceburna73	Thu, 16 June 2005 11:34
	Re: Higher RON Fuels: Did you know?	Corona RT142	Thu, 16 June 2005 22:55
	Re: Higher RON Fuels: Did you know?	Norbie	Fri, 17 June 2005 00:52
	Re: Higher RON Fuels: Did you know?	THE WITZL	Fri, 17 June 2005 03:50
	Re: Higher RON Fuels: Did you know?	st184 sillycar	Sun, 19 June 2005 01:09

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