fuel economy

[Tonyz]

Ive got the distance travelled and the fuel used but how do I calculate these together to get the KPL

[Big Shed]

Ive got the distance travelled and the fuel used but how do I calculate these together to get the KPL

Kpl = km/litres used

500km travelled/50 litres used = 10kpl

[wheelinround]

Oh for the days of MPG where achieving 40MPG was lifes aim.
I knew a fellow who's GTS Falcon got 38 MPG one long runs and 28MPG on city

[dazzler]

I normally go;

500km divided by 40 litres equals 12.5 km for each litre. 12.5kppl.

Then I go 100 divided by 12.5 equals 8 litres per 100km.

[Tonyz]

OK so I travelled 1450 K used 157 bio desiel = 9.24 kpl
* 100 divided by 9.24 = 10.82 correct?

[Dan]

OK so I travelled 1450 K used 157 bio desiel = 9.24 kpl
* 100 divided by 9.24 = 10.82 correct?
Yep. Another way to look at it is, you travelled 14.5 "blocks" of 100km's so you can divide you fuel into 14.5 bits to get how much went into each 100km block. 157/14.5=10.8

An XR8 falcon needs about 13l to go 100km but there's a little spot on the dash that tells you that.:D

[wheelinround]

Yep. Another way to look at it is, you travelled 14.5 "blocks" of 100km's so you can divide you fuel into 14.5 bits to get how much went into each 100km block. 157/14.5=10.8

An XR8 falcon needs about 13l to go 100km but there's a little spot on the dash that tells you that.:D

So your using about 28 MPG old scale

the other way to do it is download Microsofts Calulator Plus which is a great addon does many conversions http://www.microsoft.com/downloads/details.aspx?FamilyID=32b0d059-b53a-4dc9-8265-da47f157c091&DisplayLang=en

[pawnhead]

Google calculator (http://www.google.com.au/search?hl=en&q=1-2%2F3*4%2B5&btnG=Search&meta=) does scientific (http://www.google.com.au/search?num=100&hl=en&gbv=2&safe=off&q=%28tan+27+degrees%29%2A+sqrt+2&btnG=Search&meta=) and conversions (http://www.google.com/search?hl=en&q=1.2+AUD+per+litre+in+USD+per+gallon&btnG=Search)

No programs to download:
http://www.google.com.au/intl/en/help/features.html#calculator
http://www.google.com.au/intl/en/help/calculator.html

[Dan]

So your using about 28 MPG old scale

I reckon about 18mpg for me and about 22mpg for Tonto (could be wrong though).

[Tonyz]

fair go is that good the little navara 4cyl ute was going like a bat outa hell. Ave speed to Adelaide 135. kid you not. both UHF radios working the truck lines and all clear on the highway rubber ducky.Ave speed return trip 120 Bio desiel is great. When I was using standard desiel could barely reach 120k and fuel use was about 550k on a tank now we (read I) can hit 150ks and about 850-900k on a tank.
Poor little bugga its an '89 380klicks on the dial carries full bull bar and A frame tow hitch on the front as well. Back is Jarrah floorboards workings as dropside.

[MurrayD99]

Say you put 60l in the car and it has done 600Km. 10 km/l.... Roughly, multiply by 3 and you get mpg (30).

[Dan]

It seems it's closer to multiply by 2.

10km/l is (according to google) is 23.5mpg.

[MurrayD99]

It seems it's closer to multiply by 2.

10km/l is (according to google) is 23.5mpg.

Nah. It's actually 28.xx. That 23.5 might be US measures. Here's a link

http://www.accommodationz.co.nz/economycalculator.html

[Ernie47]

From memorythe magic number is 282.
282/mpg = L per 100Km
282/L per 100Km = mpg.
Can't remember where I found it but I use it when travelling just because I can - and mpg still makes more sense to me than L/100Km, even though it is easier to work out the distance I can travel on a tank full when the tank capacity is measured in litres. Saves having to divide the number of litres by 4.54609 to get gallons.

Ernie.

[Dan]

Nah. It's actually 28.xx. That 23.5 might be US measures. Here's a link

http://www.accommodationz.co.nz/economycalculator.html
Bugger.

According to Wikipedia,

U.S. liquid gallon (http://en.wikipedia.org/wiki/U.S._customary_units) is legally defined as 231 cubic inches (http://en.wikipedia.org/wiki/Cubic_inch), and is equal to 3.785411784 litres (http://en.wikipedia.org/wiki/Litre) (exactly) or about 0.13368 cubic feet (http://en.wikipedia.org/wiki/Cubic_feet). This is the most common definition of a gallon. The U.S. fluid ounce (http://en.wikipedia.org/wiki/Fluid_ounce) is defined as 1/128 of a U.S. gallon.
U.S. dry gallon (http://en.wikipedia.org/wiki/U.S._customary_units) is one-eighth of a U.S. Winchester bushel (http://en.wikipedia.org/wiki/Bushel) of 2150.42 cubic inches, thus 268.8025 cubic inches (exactly) or 4.40488377086 litres (exactly)
Imperial (UK) gallon (http://en.wikipedia.org/wiki/Imperial_units) is legally defined as 4.54609 litres (http://en.wikipedia.org/wiki/Litre) (~277.42 cu in), which is about 1.2 U.S. liquid gallons. This definition is used in the United Kingdom (http://en.wikipedia.org/wiki/United_Kingdom), and is based on the volume of 10 pounds (http://en.wikipedia.org/wiki/Pound_%28mass%29) of water at 62 °F (http://en.wikipedia.org/wiki/Fahrenheit). (A U.S. liquid gallon weighs about 8.33 pounds at the same temperature.) The Imperial fluid ounce (http://en.wikipedia.org/wiki/Fluid_ounce) is defined as 1/160 of an Imperial gallon. The Imperial gallon is no longer legal, in the UK, for trade or public administration purposes, but it is used colloquially (and in advertising) for fuel consumption figures in miles per gallon. The Imperial gallon continues to be used as a unit of measure for fuel in various countries (for example, United Arab Emirates and Sierra Leone).

[Dan]

If I go to a US vehicle manufacturers site and look at the economy figures, am I seeing miles per (US) gallons or miles per (UK) gallons?

[Big Shed]

If I go to a US vehicle manufacturers site and look at the economy figures, am I seeing miles per (US) gallons or miles per (UK) gallons?

I assume that would be per US gallon, not Imperial (UK) gallon.

Always wondered why the Yankee gallon was different and found the answer here (http://en.wikipedia.org/wiki/Comparison_of_the_Imperial_and_US_customary_systems).

[dennford]

I assume that would be per US gallon, not Imperial (UK) gallon.

Always wondered why the Yankee gallon was different and found the answer here (http://en.wikipedia.org/wiki/Comparison_of_the_Imperial_and_US_customary_systems).


That's something I lways wondered too but I'm surprised to see that it was the british that changed whilst the Yanks use the original Pommy system.

Denn

[pawnhead]

Always wondered why the Yankee gallon was different and found the answer here (http://en.wikipedia.org/wiki/Comparison_of_the_Imperial_and_US_customary_systems).You learn something every day. I didn't even realize they were different.

Isn't it amazing. Ten years ago you might be wondering who to ask, but today, with the click of a mouse, you can find out almost anything (http://www.google.com.au/search?hl=en&q=Who+were+Popeye%27s+nephews%3F&btnG=Search&meta=). :q

[Gristle]

Despite being committed to embracing the metric system (especially after 12 years in a timber mill where it was all they used), I've always done my calculations in MPG.

Funny thing, almost every car I've owned seems to give the same result ?? 21 MPG.

1975 - had a Monaro with 5 litre bent 8 (and, it was one of those standard but perfectly assembled motors, it easily outdid a mates similar model with the 5.7 litre, 350 C.I chev engine) and 3 speed "Traumatic" slushbox gave 21 per gallon!

1980 - HD Holden wagon with 186 (about 3 litre) slightly modded with extractors, twin carbs, Yella Terra head but the standard 3 on the tree managed 21 again?

Now - Holden Rodeo flat tray 4WD with 2.6 injected donk, and 5 speed box, only used on the tarmac gives ??? can you guess?:?

weird huh? And motorbikes from 400 cc twins, 500 singles, to 750 shaft drive 4's all gave about 60 mpg.

I just don't get it :oo::oo:

[Harry72]

So going by your figures my little focus gets 31.3mpg USA gal(6.8/100km)on the hyway... and still can chew up a injected 5ltr Holden:D
I tested it, went on a trip that was a tad over 800km one way got there just on a full tank of Shell optimax(55ltr's), but I paid the price I should have filled up 1/2 way as there was no high octane fuel available(needs 98ron min)so I had to buy a bottle of booster(@$35 a bottle!)... only just made it back to the 1/2 way point, booster my ass!
The funny thing is the factory rating was 9.5L/100km!

Wheelin, Id really like to see any GT falcon that can get even 28mpg on the hyway... I think he was dreaming! The closest would have been the XR GT with its near stock 289 at 22mpg.

Go here for a straight out L/100k mpg convertor (http://rakhunov.eraccoon.com/Calc/fuel_off.htm)

[Make it work]

My best was just below 60mpg in a hotted up VW wagon, slip streaming trucks at 3am doing 90 to 100mph on the Pacific Hwy in the late 80's.

Western Sydney to Port Macquarie in under 4 hours, and that was in the days when you still had to go through Newcastle.

When the trucks slowed down you knew the cops were around.

Alan