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Owners manual recommendation
Posted by dtech (more from dtech) on Thu, 9 Jan 2003 16:14:56
In Reply to: Re: Here's why this is true ... not..., Stephen Goldberger, Thu, 9 Jan 2003 15:39:51
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For my 1999 SE 4 cylinder calls for range of 86 to 93 AON, but says Saab recommends AON 90. Likely this means that the ECU is programmed for ideal mix of performance and fuel economy over typical engine operating ranges while running this grade of fuel. You probably may get a bit more performance running 93 AON, and going down to 86 AON is probably the mininum to support a lean mixture as well as higher boost levels without causing excessive knock.
The Trionic is obviously more advanced than most if not all production engine management systems, as it measures the the combustability of the fuel/air mixture and to a large degree adjusts timing, boost, mixture, for ideal combustion before knocking is experienced. But I have to believe that its programming allows for best engine operation under typical conditions when running fuel at the 90 AON level.
posted by 198.81.26...
Posts in this Thread:
- Final Word On Gas Mileage - a call to all Aero owners, Paul02Aero, Tue, 7 Jan 2003 23:15:08
- I am happy., Coolknight, Mon, 13 Jan 2003 09:21:20
- Re: Final Word On Gas Mileage - a call to all Aero owners, Paul Ellis, Sat, 11 Jan 2003 00:36:21
- Re: Final Word On Gas Mileage - a call to all Aero owners, Karl D, Fri, 10 Jan 2003 23:11:50
- Re: Final Word On Gas Mileage - a call to all Aero owners, frank
, Wed, 8 Jan 2003 20:32:56 - So you bought an Areo for gas mileage??!!, DivrDon
, Wed, 8 Jan 2003 17:48:13 - Lower octane = higher gas mileage/and more, TG, Wed, 8 Jan 2003 16:48:14
- I don't think so..., Stephen Goldberger, Wed, 8 Jan 2003 22:25:52
- 98+ RON a do ron ron, a do ron ron, Simon Watkins, Thu, 9 Jan 2003 14:52:21
- Re: I don't think so..., Dean, Thu, 9 Jan 2003 14:33:53
- Re: I don't think so..., TG, Thu, 9 Jan 2003 05:05:25
- Here's why this is true, TG, Thu, 9 Jan 2003 05:15:54
- Re: Here's why this is true ... not..., Stephen Goldberger, Thu, 9 Jan 2003 15:39:51
- Re: Here's why this is true, dtech, Thu, 9 Jan 2003 14:45:40
- Stephen, TG is correct, Schu, Thu, 9 Jan 2003 07:26:59
- Re: Car Specs, Paul02aero, Wed, 8 Jan 2003 19:24:43
- Re: Car Specs, TG, Thu, 9 Jan 2003 05:08:11
- Cold weather, hills, tight engine..., Stephen Goldberger, Wed, 8 Jan 2003 22:28:51
- Re: Car Specs, Dean, Wed, 8 Jan 2003 20:07:52
- 21.0, UnderDog, Wed, 8 Jan 2003 12:29:57
- Re: Final Word On Gas Mileage - a call to all Aero owners, KeithCT, Wed, 8 Jan 2003 12:03:23
- Final Word On Gas Mileage - Response, Paul02Aero, Wed, 8 Jan 2003 11:06:17
- Take her out on the highway...., Sieglo, Wed, 8 Jan 2003 10:19:23
- Re: Final Word On Gas Mileage - a call to all Aero owners, AeroLady, Wed, 8 Jan 2003 09:32:36
- Re: Final Word On Gas Mileage - a call to all Aero owners, Dean, Wed, 8 Jan 2003 09:26:51
- 2002 Aero wagon, MT 60%city 40% highway (in traffic)..., bRAD, Wed, 8 Jan 2003 09:00:43
- Avg 28mpg, Schu, Wed, 8 Jan 2003 07:51:39
- Re: Final Word On Gas Mileage - a call to all Aero owners, CraigU, Wed, 8 Jan 2003 07:14:22
- Keep it simple, Lou, Wed, 8 Jan 2003 07:06:34
- about the same as yours, Aero'ed, Wed, 8 Jan 2003 06:49:06
- Re: Final Word On Gas Mileage - a call to all Aero owners, dwin, Wed, 8 Jan 2003 01:26:21
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