21 mpg this weekend on my nice long ride...

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Oct 14, 2009 | 12:46 AM

#11

2wheelmonster

Senior Member

Joined: Jan 2009

Posts: 1,439

I just got nitrogen put in the tires, I hope it makes a difference in mpg

Oct 14, 2009 | 05:39 AM

#12

rotten

Member

Joined: Aug 2007

Posts: 90

From:

Quote:

Originally Posted by GOFASTER

Up here at the higher altitudes we have less oxygen in the air, therefore we require a lower octane fuel to get the same performance. 85, 87, 91 are the usual grades of gasoline in the "High Country".

I wondered about that, thanks!

Oct 14, 2009 | 08:01 AM

#13

08H3

Senior Member

Joined: Jan 2008

Posts: 298

From:

Quote:

Originally Posted by 2wheelmonster

I just got nitrogen put in the tires, I hope it makes a difference in mpg

Nitrogen won't make a difference in mileage. Advantage of nitrogen is that it's a larger molecule so your tires will lose pressure more slowly due to leakage.

Oct 14, 2009 | 10:43 AM

#14

mikehartigan

Member

Joined: Oct 2008

Posts: 95

From:

I routinely get 18.5-ish around town (40-45 mph speed limits, not too many stops) and about the same on the highway (not surprising, since, aerodynamically speaking, I'm driving a brick). I'm driving an '08 H3, 3.7, 5 speed. Using my ScanGauge, I've found that the sweet spot is around 45mph. A good long ride at that speed averages just over 22mpg. But there ain't no way in hell I'm going to drive 45mph on the Interstate.