Re: MPG suddenly much lower on highway than in city ?!? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Yes, at higher speeds wind resistance increases because it requires more energy to push through the same air at a faster rate. In fact if you double your speed from say 35 mph to 70 mph, wind resistance quadruples. Also, cold air is more dense than warm air so high speed fuel economy suffers in the winter. On the other hand since cold air is denser, it has more oxygen content (per volume) and your engine will get more power out of the fuel.
Posts in this Thread:
- MPG suddenly much lower on highway than in city ?!?, Schu, Fri, 7 Apr 2006 05:55:18
- I think I know what it is, Schu, Mon, 10 Apr 2006 06:11:07
- Re: MPG suddenly much lower on highway than in city ?!?, ramblerdrver, Fri, 7 Apr 2006 18:19:54
- Re: MPG suddenly much lower on highway than in city ?!?, Brooks G, Fri, 7 Apr 2006 17:14:27
- Re: MPG suddenly much lower on highway than in city ?!?, ramblerdrver, Fri, 7 Apr 2006 10:02:00
- Re: MPG suddenly much lower on highway than in city ?!?, SeeVTSaab, Fri, 7 Apr 2006 07:44:13
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