Comments on: Quick fix for gas mileage!

By: Chris

Chris — Tue, 01 Jul 2008 02:46:06 +0000

Thanks Annie! I suspected it was pretty unlikely. I’m working on sample number four now…

I suppose I could go back to ‘more aggressive driving’ for a few tanks to show that I can make the mileage go back to ‘normal’.

By: annie

annie — Mon, 30 Jun 2008 15:59:05 +0000

Ooh, a mid-morning z-test!

Given the numbers you provide, there is statistically less than .0002 probability that your mileage on the latest 3 tanks represent the population of mileages over the life of the car.

However, in terms of empirical generalizability, you’d have a much stronger argument if your test sample is larger than 3.

By: Stephen

Stephen — Fri, 20 Jun 2008 18:30:58 +0000

I am so tempted to say “Duh!”, but I won’t. I applaud the blog entry. Between the obvious RPMs saved and the not so obvious wind-resistance factor, slowing down is a great idea. Another one of my favorites this time of year is at lower speeds don’t use AC if you can stand it. Windows down is better. The slow speeds don’t add enough drag for most cars to trump the AC. At higher speeds light AC is probably more efficient. I’m sure a ton of other simple tricks could be googled given the gas price ‘crisis’.

By: Bill Ruhsam

Bill Ruhsam — Thu, 19 Jun 2008 13:01:19 +0000

Congratulations. You’re turning yourself into a Hypermiler