07-25-2012, 09:46 PM
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#1 (permalink)
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wrx4me...
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highway driving strategies
I do a fair amount of highway driving. What kind of approach to that scenario do folks find that works the best?
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07-25-2012, 10:04 PM
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#2 (permalink)
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Pishtaco
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Go slow - slower than you ever thought you'd travel on a highway. 60 mph should be your maximum. Stay in the right lane, use merging traffic as an excuse to slow down even more. Glide on all downhills.
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Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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07-25-2012, 10:12 PM
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#3 (permalink)
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Master EcoModder
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Quote:
Originally Posted by thomason2wheels
I do a fair amount of highway driving. What kind of approach to that scenario do folks find that works the best?
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It all depends on what you mean by "highway". Interstate? Heavy traffic? Light traffic? Flat? Hilly? Two-lane? Four-lane? What's the max speed limit? What speed does the traffic normally flow at? Any red lights? Stop signs?
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Diesel Dave
My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".
1 Year Avg (Every Mile Traveled) = 47.8 mpg
BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html
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07-25-2012, 11:14 PM
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#4 (permalink)
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Master EcoModder
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+1 to what Sentra posted.
The only difference for me is to try to keep right and go with the flow of traffic. Find a larger truck or bus to follow that is going a little slower than the rest of the traffic in the right lane and get 3 stripes behind them (minimum separation to be safe about 130 feet). I prefer to not be an "influence" to traffic behind my car, meaning I will not stand out as the obstruction to traffic flow, because here that can lead to "agressive incidents" that can escalate into a dangerous situation.
regards
Mech
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07-26-2012, 05:55 AM
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#5 (permalink)
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Scandinavian creature
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Foresee the traffic. Start gliding as soon as you realize there's no point to accelerate.
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07-26-2012, 11:11 PM
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#6 (permalink)
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Intermediate EcoDriver
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Try to find a tractor-trailer rig traveling in your intended direction, and follow him at a 2-3 second interval. Ignore other traffic. They're just trying to get around the truck in front of you.
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Fuel economy is nice, but sometimes I just gotta put the spurs to my pony!
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Just 'cuz you can't do it, don't mean it can't be done...
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Quote:
Originally Posted by elhigh
The presence of traffic is the single most complicating factor of hypermiling. I know what I'm going to do, it's contending with whatever the hell all these other people are going to do that makes things hard.
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07-27-2012, 01:39 PM
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#7 (permalink)
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Got MPG?
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On my commute (double lane divided highway) 110km/hr (~70mph) it is pretty sparsely travelled at times.
I drive 90km/hr, most of the bends in the road are banked, I change lanes to aim for the bottom of the bank, makes a huge difference compared to the upper lane. I also drift from lane to lane to pick the shortest route (think racing lines) using my signal of course.
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2013 Honda Civic Si - 2.4L
OEM front to back belly pan from the factory.
Last edited by LeanBurn; 08-01-2012 at 06:31 PM..
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07-27-2012, 02:11 PM
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#8 (permalink)
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Drive less save more
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On my Highways i like to drive 95-100kmh,if i am being approached from behind by a pack of cars I'll adjust my speed, briefly, to approximately the speed limit.
The cars pass me doing their unnecessary fuel sucking 10 k over and i resume my customary fuel saving 10 k under.
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Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
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07-27-2012, 02:17 PM
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#9 (permalink)
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OCD Master EcoModder
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Coasting on interstates you likely wil lose speed faster than practical, but try it to see.
Less speed is your friend because drag or air resistance goes up dramatically as speed increases - I think drag increase is the square of the speed increase. So 2x your speed gives 4x drag increase. 1.5x speed is 2.25x drag increase, not your friend.
For mods, consider higher tire air pressure. Then, anything that helps aerodynamics. Grill block (less air banging around under hood), belly pan, flat wheel covers, Kamm back or roof extension. With several of these done you will coast much better.
I commute 55 mi. each way so I've been working those issues.
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Coast long and prosper.
Driving '00 Honda Insight, acquired Feb 2016.
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07-27-2012, 02:41 PM
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#10 (permalink)
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Master EcoModder
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Don't necessarily focus on the car directly in front of you, but focus a few cars ahead to see what the traffic is doing. More often then not, i can begin my engine off coasting well before the person directly in front of me starts using their brakes.
In heavy traffic, the right lane is usually the fastest overall because all the drivers in the left lane have 0 patience and just ride the slinky wave (stop-go-stop-go-stop-go). Try to leave a good amount of distance ahead of you to "soak up" the slower moving traffic in front of you.
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