Comments on: Hypermiling Tips You Should Avoid http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/ Increase Fuel Economy and Save Money at the Pump Wed, 28 Jul 2010 18:42:33 +0000 hourly 1 http://wordpress.org/?v=3.0 By: ike http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/comment-page-1/#comment-63660 ike Tue, 25 May 2010 17:14:02 +0000 http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/#comment-63660 steering wheel won't lock up if ignition is in the on position..."acceleration to get out of a tight spot" is as simple as pop-starting the engine and hitting the gas...really pretty fast...and in my experience, I rarely have to accelerate to avoid an accident. In small vehicles, breaks have more than enough power to stop the car quickly in an emergency. steering wheel won’t lock up if ignition is in the on position…”acceleration to get out of a tight spot” is as simple as pop-starting the engine and hitting the gas…really pretty fast…and in my experience, I rarely have to accelerate to avoid an accident. In small vehicles, breaks have more than enough power to stop the car quickly in an emergency.

]]> By: Rob http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/comment-page-1/#comment-62237 Rob Mon, 30 Mar 2009 17:21:29 +0000 http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/#comment-62237 That could be. Of course, I'm driving a Land Rover LR3... That could be. Of course, I’m driving a Land Rover LR3…

]]> By: Matt http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/comment-page-1/#comment-62227 Matt Thu, 26 Mar 2009 08:01:54 +0000 http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/#comment-62227 @Rob: Maximum speed through corners depends on how your car handles... I'm guessing Brian's car goes around the corner better than a Prius @Rob: Maximum speed through corners depends on how your car handles… I’m guessing Brian’s car goes around the corner better than a Prius

]]> By: Rob http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/comment-page-1/#comment-61130 Rob Thu, 31 Jul 2008 05:06:02 +0000 http://www.dailyfueleconomytip.com/common-sense/hypermiling-tips-you-should-avoid/#comment-61130 I've replied to your posts on numerous occasions. This one may be a little surprising, but I do each and every one of those things. My blog goes into many of them extensively, in particular I've made a couple of posts about both the safety and the efficacy of drafting trucks. Even there I don't recommend it for everyone in all circumstances, but I've thoroughly analyzed the conditions under which it can be done safely. As to inflating tires, it isn't so much area of contact but rather reduced hysteresis losses from tire flexure as stiffness increases with increasing pressure. Again, not for all in all circumstances, but also not to be ruled out. As to engine off coasting, it must be practiced in an unoccupied level area to determine how much effort steering will take, whether the wheel locks, how many brake applications are possible before power assist isn't effective (about two in my vehicle) and how difficult unassisted braking is, etc. When this is done,under certain limited circumstances EOC as it's referred to in the hypermiling community can be quite safe. Coasting through stop signs is one I rarely emloy, and then only at intersections I know well and at which I have verified excellent visibility. In your catalog of "dangerous" practices, you left out taking the shortest line and maintaining maximum speed through corners. I think that, on those rare occasions when I employ it, this is the technique with which I'm least comfortable. I’ve replied to your posts on numerous occasions. This one may be a little surprising, but I do each and every one of those things. My blog goes into many of them extensively, in particular I’ve made a couple of posts about both the safety and the efficacy of drafting trucks. Even there I don’t recommend it for everyone in all circumstances, but I’ve thoroughly analyzed the conditions under which it can be done safely.

As to inflating tires, it isn’t so much area of contact but rather reduced hysteresis losses from tire flexure as stiffness increases with increasing pressure. Again, not for all in all circumstances, but also not to be ruled out.

As to engine off coasting, it must be practiced in an unoccupied level area to determine how much effort steering will take, whether the wheel locks, how many brake applications are possible before power assist isn’t effective (about two in my vehicle) and how difficult unassisted braking is, etc. When this is done,under certain limited circumstances EOC as it’s referred to in the hypermiling community can be quite safe.

Coasting through stop signs is one I rarely emloy, and then only at intersections I know well and at which I have verified excellent visibility.

In your catalog of “dangerous” practices, you left out taking the shortest line and maintaining maximum speed through corners. I think that, on those rare occasions when I employ it, this is the technique with which I’m least comfortable.

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