Temps, ethanol, octane? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Temps, ethanol, octane?
Posted by SeeVTSaab [Email] (more from SeeVTSaab) on Mon, 22 Jan 2007 05:08:42
In Reply to: Gas Milage, VB, Sun, 21 Jan 2007 11:35:50
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Your larger tires will give small % better mileage but won't be reported on SID - MPG /MPH error likley increase slightly (recent thread puts it at about 3% which seems right to me).
Air pressure, snow tire tread, ethanol content all conspire to chip away at mpg.
Are you running premium? Saabs are unique in that higher octane often results in better mileage as well as performance, ethanol content notwithstanding.
Ethanol 10% usually drops my highway mpg from 29-30 to 27-28.
Highway 75mph drops my 50-60mph mpg from 30-31 mpg to 29-30, so lots of factors.
Might peek at you plugs, insure you're getting good ignition / mix.
99 9-3SE Imola Red 5sp 134K
Posts in this Thread:
- Gas Milage, VB, Sun, 21 Jan 2007 11:35:50
- The different tire size throws off the SID 3.4%, Schu, Wed, 24 Jan 2007 06:57:04
- Re: Gas Milage & tire sizes, JimBlake , Mon, 22 Jan 2007 10:46:05
- Temps, ethanol, octane?, SeeVTSaab, Mon, 22 Jan 2007 05:08:42 <-- Viewing This Message
- Re: Gas Milage, graham lunn, Mon, 22 Jan 2007 03:49:10
- Re: Gas Milage, scottg, Sun, 21 Jan 2007 20:11:09
- Re: Gas Milage, Brian V, Sun, 21 Jan 2007 15:22:20
- Re: Gas Milage, Kevin S, Sun, 21 Jan 2007 14:09:28
- What speed? What psi in tires?, Drew in Houston, Sun, 21 Jan 2007 12:28:11
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