Driving Style vs. gas consumption - Saab 9-5 Bulletin Board - Saabnet.com
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Driving Style vs. gas consumption
Posted by Tim (more from Tim) on Thu, 26 Aug 2010 07:35:04
In Reply to: Re: BTW, 70-80mph is the norm for highway around here, Tim, Thu, 26 Aug 2010 07:10:46
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The Highlander's gas mileage seems to be much more affected by driving style than the Saab wagon. Putting the Highlander in cruise control most of the time can really see the mpg number soar (if you can call that for 24+mpg on a V6 AWD wagon/crossover/SUV; I once got it as high as 26mpg).
The 9-5 wagon on the other hand is not much affected by driving style in the last few years, consistently delivering lower 20's using 87octane fuel, and mid-20's for higher octane fuel. Both numbers drift upward on long road trips that last more than a couple hours. The car is still running on original O2 sensors (9yrs old). I get a P1182 (long term fuel trim too lean) once every other month or so (that's about 1000 miles, as I put only 5k a year on the car nowadays), so I wonder if the engine may be unnecessarily dumping extra fuel into the chamber to prevent knocking. However the code/CEL is so infrequent and I drive so few miles, it hardly makes any sense to fix. If the repair costs as little as $400 and gives me 10% better gas mileage, it would be half a decade before I'd get my money back from fuel savings. Paying the 3-5% price premium on higher octane gas seems to make more sense.
posted by 71.184.95...
Posts in this Thread:
- 34.6 MPG, really?!?!, Steve, Mon, 23 Aug 2010 17:08:50
- I got 38mpg average couple of weeks ago..., Johnson , Thu, 26 Aug 2010 22:16:10
- last time I tracked a trip...., LesH, Thu, 26 Aug 2010 11:54:58
- About right at that speed, Noel, Tue, 24 Aug 2010 06:33:02
- What tires are you using?, Tim, Mon, 23 Aug 2010 19:51:37
- sounds reasonable..., James, Mon, 23 Aug 2010 19:41:34
- Re: 34.6 MPG, really?!?!, Gargoyle, Mon, 23 Aug 2010 17:49:34
- Re: 34.6 MPG, really?!?!, AdamSAABaero2004, Mon, 23 Aug 2010 17:44:33
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