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Send Mythbusters this idea: Accelerating Slowly Saves Fuel

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Send Mythbusters this idea: Accelerating Slowly Saves Fuel

Old 11-23-2015, 11:47 AM
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Default Send Mythbusters this idea: Accelerating Slowly Saves Fuel

We have all been there, sitting at that forever light and when it finally turns green people take off so slow you want to pull your hair out or scream GO !


Alright I am going to make it I am only about 15 cars back then bam yellow and red and you have wait again... You missed it.


Why does this happen ? Because of that stupid myth that taking of slowly saves gas.

"Accelerating quickly requires more fuel than accelerating slowly."

Ya but your dumping fuel in for a longer period of time.


https://en.wikipedia.org/wiki/Brake_...el_consumption


Lets all send in this myth to be busted http://www.discovery.com/tv-shows/my...submit-a-myth/


Maybe if they get enough mails they will do it.
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Old 11-23-2015, 11:55 AM
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I think more people are looking at their phones more then they are trying to save gas. I had actually never herd of that before.
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Old 11-23-2015, 11:56 AM
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Going on my cars internal computer it does save gas by starting off slowly. If I start off from a light and head up to 60 MPH slowly, my MPG drops 1/10th a MPG a few minutes later doing the same stop to 60 MPH at a high rate of speed I lose 2-3/10ths of a MPG.

I can only tell you what the onboard computer says.
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Old 11-23-2015, 12:06 PM
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Nice first post.....or not.
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Old 11-23-2015, 12:09 PM
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Was that an advertisement?
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Old 11-23-2015, 12:10 PM
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Originally Posted by YFMF View Post
Going on my cars internal computer it does save gas by starting off slowly. If I start off from a light and head up to 60 MPH slowly, my MPG drops 1/10th a MPG a few minutes later doing the same stop to 60 MPH at a high rate of speed I lose 2-3/10ths of a MPG.

I can only tell you what the onboard computer says.
I believe the argument would be that you're burning -1/10th a MPG for a longer amount of time, compared to speeding up faster and burning the higher -3/10th MPG for a shorter time.

It's not just about MPG from 0-60, but time at that burn rate. T would be lower with faster acceleration.
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Old 11-23-2015, 12:10 PM
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Do you find more things "sweeping" your detector fast or slow?
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Old 11-23-2015, 12:11 PM
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Some of the gasoline savings came from changing the patterns of gear shifting. ''People were shifting too late from first to second, and from second to third,'' Dr. [V]an der Voort said. People saved the most gasoline when they pushed down on the accelerator briskly and then shifted quickly, keeping the revolutions per minute low -- not by accelerating very gently.
''It's not commonly understood by people who drive,'' Dr. Dougherty said. ''They think that the way to get best fuel economy is to accelerate very gently, but that proves not to be the case. The best thing is to accelerate briskly and shift.


More : http://physics.stackexchange.com/que...el-consumption


I forgot to post that. Be back later
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Old 11-23-2015, 12:12 PM
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They already did an episode on the hyper-mile theory. I say screw it. Stomp the dual quads and GET IT!!! I love that sound! Nothing like a big motor with a big carb gulping air!!!
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Old 11-23-2015, 12:13 PM
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The OP would be correct if the acceleration was up to peak torque (and wind resistance was neglected )and you maintained that speed. Brake specific fuel consumption would be minimized. In reality it is almost impossible with lights and hills and traffic and atmosphere and all. Likewise boats - anyone with a car or boat with a computer readout of fuel consumption sees this effect.

Very strange first post be interesting to see where this goes..
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Old 11-23-2015, 12:27 PM
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the show was cancelled
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Old 11-23-2015, 12:31 PM
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When the Eaton is whining and building boost I can watch the gas gauge move... Don't care!
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Old 11-23-2015, 12:51 PM
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Old 11-23-2015, 12:57 PM
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Originally Posted by WalkingTheDocks View Post
I believe the argument would be that you're burning -1/10th a MPG for a longer amount of time, compared to speeding up faster and burning the higher -3/10th MPG for a shorter time.

It's not just about MPG from 0-60, but time at that burn rate. T would be lower with faster acceleration.
If I'm averaging 25 MPG and come to a complete stop, then speed up to reach 60 MPH at a slow and steady pace and my avg drops from 25 down to 24.9 MPG I lose 1/10th MPG. When I stop and have 25 MPG on the readout and accelerate hard to 60 MPG and my MPG. drops by 3/10th to 24.7 MPG I lost more gas by going faster.
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Old 11-23-2015, 12:58 PM
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Originally Posted by ol guide View Post
the show was cancelled

Not yet but in 2016 I think.
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Old 11-23-2015, 01:01 PM
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Gas is $1.69..... who cares
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Old 11-23-2015, 01:22 PM
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Originally Posted by YFMF View Post
If I'm averaging 25 MPG and come to a complete stop, then speed up to reach 60 MPH at a slow and steady pace and my avg drops from 25 down to 24.9 MPG I lose 1/10th MPG. When I stop and have 25 MPG on the readout and accelerate hard to 60 MPG and my MPG. drops by 3/10th to 24.7 MPG I lost more gas by going faster.

Ya but you are burning at a rate of 24.9 possibly more than three times longer.

I think maybe
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Old 11-23-2015, 01:23 PM
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Please people in front, just go, I don't want to wait this light again. Please please , so close to the onramp but so far way.

Last edited by Myth_Busting_Is_Fun; 11-23-2015 at 01:29 PM. Reason: My pic of the traffic light jam not showing
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Old 11-23-2015, 01:27 PM
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The difference is negligible for average driving. City driving in heavy traffic, yes it makes sense to accelerate gradually, accelerating quickly every time you get the chance means you are also braking more.
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Old 11-23-2015, 01:31 PM
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Originally Posted by ol guide View Post
the show was cancelled
Thats because they got rid of the real entertainment. When they let Tori, Grant and Kari go the show jumped the shark and ratings dropped practically over night. IMHO
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