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Average Consumption (MPG)

scottishmark

Turbo Monkey
May 20, 2002
2,121
22
Somewhere dark, cold & wet....
That's a really long tunnel? How much elevation gain is there?
Not sure about the depth of it (it's under the river clyde) but i do know that its 762 metres (2,500 feet) long and the gradient is 1:16 (6%). Any maths geeks present can feel free to work out the depth from that.

I'm guessing those puddles are urine.
I can assure you that I have not, and will not, be stopping for a smell!
 

CBJ

year old fart
Mar 19, 2002
12,874
4,214
Copenhagen, Denmark
BMW X3 3.0si automatic

Old EPA standard: 19/26 - 22 combined
New EPA standard: 17/24 - 20 combined

The numbers looks like what I experience and the new standard seems more correct. It is however possible to get better numbers of course if you drive carefully and if there are not too many hills.
 

Westy

the teste
Nov 22, 2002
54,394
20,184
Sleazattle
You need a visa to get into my house, Australians and Kiwis need not apply - cannae get rid them they move in!

You visiting Glasgow then? Personally I wouldn't bother unless your being sent here
Don't do it. He's a deadbeat hippy that will have your couch reeking of patchouli and long greasy hairs tangling up your vacuum cleaner for months.
 

wreckedrex

Monkey
Feb 8, 2007
137
0
Fremont, CA
'91 miata 1.6/5spd and a few goodies: ~27mpg
'93 Toyota 4x4 long bed extended cab V6/5spd: 15-17 usually, although the last tank worked out to 20 after replacing the cap, rotor, plug wires and air filter and bumping the timing up a couple of degrees.
 

SkaredShtles

Michael Bolton
Sep 21, 2003
65,625
12,692
In a van.... down by the river
You need a visa to get into my house, Australians and Kiwis need not apply - cannae get rid them they move in!
I've got a visa AND a Mastercard. ;)

And you ain't jokin' about those f**kin' Kiwis. :mad:

You visiting Glasgow then? Personally I wouldn't bother unless your being sent here
Don't have plans to... I was just askin' - and it'd likely be on my way up to the Isle of Skye. :drool:

 

Bushwhacker

Turbo Monkey
Dec 4, 2003
1,220
0
Tar Effing River!! NC
My '99 Taco with 4WD and the V6 with a toolbox full of stuff and usually a host of shovels, rakes, sledghammers and such gets a flat 20 across the board. 15 gallon tank always gets me right at 300 miles. She is getting pretty haggard as of late...got a brake caliper hung up, the shocks are all pretty soft and just had a check engine light come on. My new shocks, struts, calipers and timing belt came from the UPS guy today, so tomorrow is "yota bomb rebirth" day:biggrin:
 

narlus

Eastcoast Softcore
Staff member
Nov 7, 2001
24,658
63
behind the viewfinder
i've been throwing the car into neutral on downslopes when there's no one else behind me and have eked out some additional mileage gains...i now typically average 35-38, depending on how much highway driving i do.
 

Toshi

Harbinger of Doom
Oct 23, 2001
38,240
7,687
i've been throwing the car into neutral on downslopes when there's no one else behind me and have eked out some additional mileage gains...i now typically average 35-38, depending on how much highway driving i do.
hippie :D here's the next mod for your car:



in all seriousness, you as an engineer should appreciate the techniques of hypermiling: from BSFC curves one can see that engines are most efficient at low rpm and high load, e.g. lugging and accelerating in a high gear at low speed. this is why pulse and glide hypermiling works: you're either coasting or you're hitting that sweet spot on the BSFC load vs. rpm map. here's a brake specific fuel consumption map for a typical gas engine, which should correspond roughly to your civic's +/- scaling of the axes (lowest g/kWh produced is the most efficient, horizontal axis is engine rpm, vertical axis is load in N-m):



as for the OP's topic, i consume about 30 Wh/mile on my electric bike + whatever calories it takes to fuel my own metabolism, and my Piaggio MP3 250 scooter gets 55-70 mpg.
 

KavuRider

Turbo Monkey
Jan 30, 2006
2,565
4
CT
I'll play.

'88 Ford Econoline E150, about 10mpg no matter what.
I don't drive very often though.
Thinking/hoping to maybe get something different though...maybe something diesel.
 

Leppah

Turbo Monkey
Mar 12, 2008
2,294
3
Utar
Ford Ranger 1997-about 16 around town, 19ish on freeway.
Dodge Minivan 2005-about 26 at 70.
Honda Civic 1995-somewhere around mid 30's. That little 1.5 liter rocks.
 

Toshi

Harbinger of Doom
Oct 23, 2001
38,240
7,687
is a high load @ low rpms bad for the drivetrain? or is that just a misconception i've had for a while?
It's very bad for bearings - lugging an engine can damage them.
i think it's a misconception from an earlier era, before ECUs and fuel injection. we're talking about 1500 rpm here, too, not running around town at 20 mph in 5th at 750 rpm. :D if the car is shaking about then don't do it. if it pulls smoothly no reason not to, imo.
 

Crashby

Monkey
Jan 26, 2003
947
1
Rochester, NY
I drive a 2006 Subie Forrester. Its rated: 20 mpg city / 26 mpg highway, but I consistently get 30-32 overall MPG by employing some basic hypermiling techniques. I don't go crazy and turn off the engine or draft semi's by 3 feet, but I rarely use the brakes, accelerate very slowly and use cruise control very often.
 

Westy

the teste
Nov 22, 2002
54,394
20,184
Sleazattle
i think it's a misconception from an earlier era, before ECUs and fuel injection. we're talking about 1500 rpm here, too, not running around town at 20 mph in 5th at 750 rpm. :D if the car is shaking about then don't do it. if it pulls smoothly no reason not to, imo.
Hell before ECU's and fuel injection most american cars cruised at 1500 rpm.
 

BrokenChain

Monkey
Oct 26, 2001
315
0
NWCT
'06 Chevy Colorado crew cab 3.5L I5 automatic - 16 city / 23 highway. Have seen as high at 24.7 mpg on a trip to Albany about 6 weeks ago.
 

CRoss

Turbo Monkey
Nov 20, 2006
1,329
0
The Ranch
2004 GMC Canyon I5 auto gets about 20 around town and 22-24 on the highway.

The Jeep 6cyl manual lifted on 38" tires that I drive all the time gets around 13mpg