Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-26-2018, 05:40 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Sep 2011
Location: socal
Posts: 19
Thanks: 2
Thanked 4 Times in 3 Posts
rolling vs full stop

Years ago, I read that a vehicle with any momentum will use 90% less fuel to get going.
Are there any studies showing how much fuel is consumed from sitting at a light vs having some momentum when it changes?
One the intersections on my commute has a slight downhill grade, and I can row the shifter between neutral and drive to barely close the gap twixt me and the vehicle in front of me until our turn to go. How slow until this is not helping?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-26-2018, 06:07 PM   #2 (permalink)
EcoModding Newb
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 6,703

Acura TSX - '06 Acura TSX
90 day: 28.07 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 28.08 mpg (US)
Thanks: 2,194
Thanked 2,546 Times in 1,881 Posts
That's too much of a simplification.

P=mv - that is, energy equals mass times velocity. The more speed you can preserve, the more efficient it is. If you're going 1 MPH as you roll through the intersection, you haven't saved much energy at all.

Slowing well before reaching a stop to preserve momentum is one of the driving tips to maximize fuel economy.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following User Says Thank You to redpoint5 For This Useful Post:
Ecky (10-31-2018)
Old 10-26-2018, 06:14 PM   #3 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 7,826

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 124.63 mpg (US)
Thanks: 178
Thanked 2,495 Times in 1,950 Posts
How much does a ticket run for "running a stop sign" cost?
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
The Following 3 Users Say Thank You to oil pan 4 For This Useful Post:
Daschicken (10-27-2018), Fat Charlie (11-13-2018), fusion210 (10-28-2018)
Old 10-26-2018, 10:12 PM   #4 (permalink)
Master EcoModder
 
slowmover's Avatar
 
Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,361

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
Thanks: 1,343
Thanked 686 Times in 520 Posts
Bad habits cost far more than dollars.

1). Safety

2). Longevity

3). Economy

Keep the order.

.
__________________
2004.0 DODGE Ram QC/LB 2500 2WD/NV-5600 305/555 ISB. 7,940-lb. Stock. 200,000 miles/5000-hrs @ 40-mph average.
1990 35' Silver Streak TT 7,900-lb.
11-cpm solo & 19-cpm towing; 21-mpg average past 54k-miles
Sold: 1983 Silver Streak 3411
  Reply With Quote
The Following 2 Users Say Thank You to slowmover For This Useful Post:
fusion210 (10-28-2018), iikhod (10-27-2018)
Old 10-27-2018, 09:29 AM   #5 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 7,826

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 124.63 mpg (US)
Thanks: 178
Thanked 2,495 Times in 1,950 Posts
I have been to California multiple times, they like to roll through stop signs.
But their all right compared to MA drivers, to them a stop sign is a suggestion.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 10-27-2018, 11:52 AM   #6 (permalink)
Master EcoModder
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 802
Thanks: 31
Thanked 192 Times in 161 Posts
Quote:
Originally Posted by oil pan 4 View Post
How much does a ticket run for "running a stop sign" cost?
Up to $100 depending on where and citing officer descriptions
__________________
2000 F250 7.3 CC 20+ MPG @ 10000 #
2013 Golf tdi 47.5 mpg neutered, 1500 mi beer run
1988 Ranger EV Volt batts>> 18,000 MPG and climbing. Rag overhaul.
  Reply With Quote
Old 10-27-2018, 01:27 PM   #7 (permalink)
EcoModding Newb
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 6,703

Acura TSX - '06 Acura TSX
90 day: 28.07 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 28.08 mpg (US)
Thanks: 2,194
Thanked 2,546 Times in 1,881 Posts
It's like $300 here. I was cited about 15 years ago and back then it was something like $280. The judge knocks a bit off the ticket just for pleading not guilty, showing up to the court date, and then simply being truthful that you were guilty. I've had all of my many tickets (none in the last 10 years) reduced by doing this.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 10-28-2018, 10:59 AM   #8 (permalink)
Master EcoModder
 
slowmover's Avatar
 
Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,361

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
Thanks: 1,343
Thanked 686 Times in 520 Posts
Itís not the cost of the ticket, per se. Itís in being moved to a higher risk category by an insurer, thus higher long-term cost. A slew of tickets is an accurate predictor about emotional state. Which is the heart of ďabilityĒ.

Credit Score & Insurable Risk: Your Slave Collar

Every monkey can pilot a car. All over the planet. Only a matter of degree in different skill level, and thatís not fundamental.

Driving involves habitual choices. Skill isnít off-setting. The important decisions about driving are all made before the key is turned.

Have the habit of encroaching the stop line at a four-way? That one is behind the curb line doesnít change the fact one is now IN the intersection. Itís not a technicality.

Same for crossing a solid white stripe. Itís not there because the Highway Department had extra paint that day.

Failure to control oneís self.

Losing the use of the vehicle should be the determinant. There are so few examples of where that is a desirable outcome versus one worse that itís an easy way to make choices. Tell yourself youíll be walking the rest of your life.

One comes to a complete stop ten feet before the stop line. Not five. Why that is so is worth your while in investigating. Extrapolating. Same for the highway lanes merge zone.

The loss problem extends downwards to the life of vehicle components. ďIíll never be able to replace these tires. Tires are no longer availableĒ. Etc.

As always the irony is that trips arenít any longer. Discipline & Duration have a new relationship.

As economy is the premise hereabouts, itís vehicle use that matters most past vehicle spec. That use is premised on habit. Not skill. Not aero bandaids.

.
__________________
2004.0 DODGE Ram QC/LB 2500 2WD/NV-5600 305/555 ISB. 7,940-lb. Stock. 200,000 miles/5000-hrs @ 40-mph average.
1990 35' Silver Streak TT 7,900-lb.
11-cpm solo & 19-cpm towing; 21-mpg average past 54k-miles
Sold: 1983 Silver Streak 3411
  Reply With Quote
Old 10-28-2018, 04:55 PM   #9 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,590

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,532
Thanked 3,372 Times in 2,124 Posts
I roll through when I've determined the risk of collision or prosecution are nil.
If a tree falls in the woods and nobody is there to hear it, does it still make noise?
__________________


  Reply With Quote
Old 10-28-2018, 07:02 PM   #10 (permalink)
Master EcoModder
 
Join Date: Jan 2009
Location: USA
Posts: 257

Winsight - '06 Honda Insight
Gen-1 Insights
90 day: 78.42 mpg (US)
Thanks: 234
Thanked 82 Times in 58 Posts
I stop at all the stops. What savings in money or gas is pretty minute as in small.

__________________
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com