MPG in my 1993, simple formula and Question

[MadExplorer93]

Thks for removing my thread which was not a prank, but infact a simple formula based upon how much i burned in gas for the money i spent and kilometers i drove which was 80 kilometers or 49.7miles.

But its ok as many don't want to do a simple math equation to figure it out so i will explain it further and ask all of you to figure this out below.

8.06 US gallons = 6.711 Imperial Gallons = 30.51 Litres this is amount of litres it would have been for my $40.00 of Premium Gas at $1.31 per litre and i only burned about $11.92 so far which is about 2 CDN Gallons of premium gas at that price.

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But in case you can't 100% figure that out above, then try this question out.

Heres a math question for you all:

If a person were to have 320 kilometers (About 198.8 Miles) on the trip meter and only spent $40.00 in the tank at a price of $1.31 per litre and a CDN gallon is 4.546 Litres and the US gallon is 3.785 Litres.

How many (MPG) would they have got from that amount of kilometers?

 

[DeRocha]

I didn't see your other thread, and your references to it make this one confusing (why mention the cost of fuel when you can just say you purchased 30.53litres?)

Anyway if you spent $40.00 at the pump for gas costing 1.31 litres/$
you would get 30.53 liters ($40.00/1.31 litres/$ = 30.53 litres)

You went 320km and used 30.53 litres of fuel thus achieving 10.48km/litre

Converted into english units:

198.8 Miles using 30.53 litres = 6.51 Miles/Litre
6.51 Miles/Litre * 3.785 litres/US gal = 24.6 Miles/US gal

Thks for removing my thread which was not a prank, but infact a simple formula based upon how much i burned in gas for the money i spent and kilometers i drove which was 80 kilometers or 49.7miles.

But its ok as many don't want to do a simple math equation to figure it out so i will explain it further and ask all of you to figure this out below.

8.06 US gallons = 6.711 Imperial Gallons = 30.51 Litres this is amount of litres it would have been for my $40.00 of Premium Gas at $1.31 per litre and i only burned about $11.92 so far which is about 2 CDN Gallons of premium gas at that price.

----------------------------

But in case you can't 100% figure that out above, then try this question out.

Heres a math question for you all:

If a person were to have 320 kilometers (About 198.8 Miles) on the trip meter and only spent $40.00 in the tank at a price of $1.31 per litre and a CDN gallon is 4.546 Litres and the US gallon is 3.785 Litres.

How many (MPG) would they have got from that amount of kilometers?

 

[DeRocha]

Thks for removing my thread which was not a prank, but infact a simple formula based upon how much i burned in gas for the money i spent and kilometers i drove...

Ok, after finding the "removed" thread your method for calculating average fuel economy is flawed. You indicated you added a precise quantity of fuel to your tank as indicated by the Gas Stations service pump, but you are guessing at the quantity of fuel burned by eyeballing the fuel gauge. Therefore you're results are very rough estimates as to your actual fuel economy.

The easiest and more accurate way to determine average fuel economy is to fill up the fuel tank and Zero out the trip odometer. When the fuel gauge gets to 1/4 tank refill the tank. Now divide the distance traveled by the quantity of fuel you just added to give you the average fuel economy for the distance traveled.

Since driving conditions and fuel added can vary it is best to repeat the above 2+ times to increase the accuracy of your overall economy. If you repeat the above process 3 times and get the following:

1. 16.5 miles/gal
2. 14.2 miles/gal
3. 19.8 miles/gal

You would add up the amounts divide by 3 (# of samples) and get an average fuel economy of 16.8 miles/gal.

 

[MadExplorer93]

DeRocha

Yeah but it very close the first time i did it based upon 80 kilometers and this thread (HERE) is based upon the $40.00 i put in and if my TRIP OD shows 320 kilometers when it is on E again, then i will still be around 24-25 MPG.

Thats all to do with my driving habit (PREMIUM 91 Octane Gas) in my town and utilizing hills when you can and easing on and off gas and same with brake pedal and so on and so on. Try to avoid as many lights as possible in my town which there is many per say back roads that have no lights, but very few stop signs where needed.

6.7 CDN gallons no matter how you work it, divided by the kilometers is what your going to get in KPG then do the math for MPG which = what we just figured out in here. I already knew the answer to my questions in this thread and i just wanted someones elses math skills to make sure it was correct.

The FORD average is BS as that is an average that is based upon what speed and what town, how many stop and go's, idling time, driving habit, octane gas used .. etc.

 

[DeRocha]

DeRocha

Yeah but it very close the first time i did it based upon 80 kilometers and this thread (HERE) is based upon the $40.00 i put in and if my TRIP OD shows 320 kilometers when it is on E again, then i will still be around 24-25 MPG.

Thats all to do with my driving habit (PREMIUM 91 Octane Gas) in my town and utilizing hills when you can and easing on and off gas and same with brake pedal and so on and so on. Try to avoid as many lights as possible in my town which there is many per say back roads that have no lights, but very few stop signs where needed.

6.7 CDN gallons no matter how you work it, divided by the kilometers is what your going to get in KPG then do the math for MPG which = what we just figured out in here. I already knew the answer to my questions in this thread and i just wanted someones elses math skills to make sure it was correct.

The FORD average is BS as that is an average that is based upon what speed and what town, how many stop and go's, idling time, driving habit, octane gas used .. etc.

No one is disputing the math used to derive your answers. However the 6.7 gallons you indicate you burned is an ESTIMATE, and estimates are only as reliable as the means used to obtain them and your means (eyeballing the fuel gauge) is far far from accurate.

Whenever making claims of fuel economy, performance, or whatever the best approach is to back up your claims with commonly used testing methods. For performance its a Dynonometer print out, for fuel economy it is the method outlined in post #3. By using standard testing methods you are comparing apples to apples, but in your case you are comparing apples to oranges.

My '93 Ford Explorer and would commonly average 20mpg (mostly flat highway driving, with easy acceleration). I bet I could have achieved slightly more if I employed the hypermiler practices. But IMO it is really hard to do all the time..

 

[garye]

that hypermiler link was great:

 

[aldive]

that hypermiler link was great:

Its been done in an Explorer; take a look at http://www.explorerforum.com/forums/showthread.php?t=196792&highlight=hypermiler

 

[MadExplorer93]

I never seen that site before, but i have and do use about 4-5 of those techniques already including the past two days.

Driving habit plays a BIG/HUGE part and speed and tac also like i mentioned in my REMOVED thread i stayed around 40-50 kilometers per hour (which is about 25-30 miles per hour) (in my town (and many CDN towns/cities) 50 kilometers is city posted limit, except if otherwise posted) and i tried 90% of the time to keep tac around 1400-1500 rpm, but going up small hills the tac would hit around 1800-2000 rpm for that short climb.

I use the white line = inner portion of the curves and let off gas when i can do so in order to glide around the corner. I also when going down a hill i let it glide down the hill, but easing off gas before the hill.

When applying brakes i would ease them on and (ease off gas about 150-200 feet from stop sign) and glide through a stop sign when i could (safety and Police are an issue) so at many times i had to stop fully then ease on gas to continue.

I have tires at 35 PSI for now, but they can go to 45-50 PSI MAX.

I don't use A/C yet as i need to get it fixed still.

I remove what ever extra weight that is not needed in the vehicle.

I use 91-94 Octane GAS, but as for now it is 91 Octane.

I also use the pulse glide technique as described on that Hypermiler page http://www.edmunds.com/advice/fueleconomy/articles/120880/article.html

 

[aldive]

I use 91-94 Octane GAS, but as for now it is 91 Octane.

Why do you use this fuel? Do you have engine modifications that necessitate the higher octane rating?

 

[MadExplorer93]

Why do you use this fuel? Do you have engine modifications that necessitate the higher octane rating?

No more pinging and much better GAS mileage and it is the recommened FORD octane for this vehicle. The minimum is 87 octane, but around here in my town you mostly see 85 octane which will/does cause pinging in many explorers.

 

[Bill Kemp]

Your driving habits are commendable and very practical to achieve more mi/km per gal./l.
However your inability to conceive how to accurately measure your milage is just amazing. That, in addition to your failure to recognize common standards & practices causes me to wonder why you started this thread. I guess you just dont realize how wrong your thinking is.
Good luck in life.

 

[MadExplorer93]

I will be doing the half tank or full tank thing again like i did last year three times to get an average, which last year in town it was around 18 MPG and on highway it was around 22 MPG average from three tank fulls.

Last year though i was driving with bad habits and would goose the pedal from 0-60 kilometers and slow down harshly about 50 feet from stop signs and i would goose it up hills too, plus pass cars on the highway portion in my city which is 60-80 Kilometers in sections before heading out of town, plus i never used the white line as much last year, usually i stayed close to center line when driving and around corners.

Also last year it still had those OLD CRAPPY champion plugs and the ORIGINAL FORD wires on it, plus the stalling issue which we all know was the fuel rail and plenum gaskets ... on top of all that i was lekaing OIL from the driverside valve cover about a litre a month.