Saxperience - Citroen Saxo Forum - View Single Post - Saving Fuel/MPG Guide v1.11111111 - inc Torque Figures, Tyre Pressures, Rated MPG

Barry123 · 27th December 2006, 14:52

Firstly, I'm not sure where it should go. Mods, move at will

Ok I’ve had quite a few people contact me regarding MPG, either calculating it, what is good MPG, how to pull babes, how to get decent MPG, why is someone getting bad MPG etc etc so I’ve complied this little post to explain literally everything I could possibly think of… I want everyone to understand it so I’ve gone for the ‘person completely new to MPG’ approach. Please don’t see it as patronising, its not.

MPG
MPG stands for Miles per Gallon. This is a measurement of how far a car can travel on the gallon of fuel. The more you travel on a gallon of fuel, the higher the MPG and crucially the cheaper your travelling costs will be. Your car’s MPG is dependent upon the engine, the transmission, the aerodynamics, the weather (yup the weather plays a big part on MPG), the weight, but most critically the way you drive.

Calculating MPG
Some cars actually calculate this for you however their accuracy is pretty limited – so it’s always a much better practice by applying your brain and doing it manually.
The way to do this is:

1) Fill up the car to the brim, and I mean the very BRIM of the filler neck, be warned this can take around 10 minutes to fill the tank up completely whilst you pop a bit of fuel in and then wait for the level to settle. You'll have to do this at least twice if you want to measure the mpg once. Given this upsets most people who are waiting behind a more realistic method, although less precise, is to fill the tank to the top until the nozzle clicks. Wait a GOOD few seconds then beginning filling again, click. Wait a few seconds again and beginning filling until it clicks, again. So 3 clicks with a good pause in between.
2) Reset the trip distance monitor on the dash
3) Drive around
4) Come back to a fuel station and then repeat step one.
5) Make a note of the fuel put into the car on the second fill up and the distance on the Trip Computer.

Then get your calculators out…
Take the distance and divide it by the number of litres put in - This will give you an answer in miles per litre of fuel.
Then multiply that value by 4.55 (or if you're extra nerdy 4.54609188)
This will give you your Miles Per Gallon for that tank.

Example:
I drive for 300 miles
I fill up and put in 29.34 litres.

So 300 / 29.34 = 10.22
Then 10.22 x 4.55 = 46.5 MPG

Simple as that

Below is a rough guide to improving your mpg/reducing your running costs...

27th December 2006, 14:52	#1
Barry123 Saxperience Hardcore! Join Date: Oct 2005 Location: Aycliffe Posts: 32,205 Car(s): Saxo VTS iTrader Score: 7 (100%)	Saving Fuel/MPG Guide v1.11111111 - inc Torque Figures, Tyre Pressures, Rated MPG Firstly, I'm not sure where it should go. Mods, move at will Ok I’ve had quite a few people contact me regarding MPG, either calculating it, what is good MPG, how to pull babes, how to get decent MPG, why is someone getting bad MPG etc etc so I’ve complied this little post to explain literally everything I could possibly think of… I want everyone to understand it so I’ve gone for the ‘person completely new to MPG’ approach. Please don’t see it as patronising, its not. MPG MPG stands for Miles per Gallon. This is a measurement of how far a car can travel on the gallon of fuel. The more you travel on a gallon of fuel, the higher the MPG and crucially the cheaper your travelling costs will be. Your car’s MPG is dependent upon the engine, the transmission, the aerodynamics, the weather (yup the weather plays a big part on MPG), the weight, but most critically the way you drive. Calculating MPG Some cars actually calculate this for you however their accuracy is pretty limited – so it’s always a much better practice by applying your brain and doing it manually. The way to do this is: 1) Fill up the car to the brim, and I mean the very BRIM of the filler neck, be warned this can take around 10 minutes to fill the tank up completely whilst you pop a bit of fuel in and then wait for the level to settle. You'll have to do this at least twice if you want to measure the mpg once. Given this upsets most people who are waiting behind a more realistic method, although less precise, is to fill the tank to the top until the nozzle clicks. Wait a GOOD few seconds then beginning filling again, click. Wait a few seconds again and beginning filling until it clicks, again. So 3 clicks with a good pause in between. 2) Reset the trip distance monitor on the dash 3) Drive around 4) Come back to a fuel station and then repeat step one. 5) Make a note of the fuel put into the car on the second fill up and the distance on the Trip Computer. Then get your calculators out… Take the distance and divide it by the number of litres put in - This will give you an answer in miles per litre of fuel. Then multiply that value by 4.55 (or if you're extra nerdy 4.54609188) This will give you your Miles Per Gallon for that tank. Example: I drive for 300 miles I fill up and put in 29.34 litres. So 300 / 29.34 = 10.22 Then 10.22 x 4.55 = 46.5 MPG Simple as that Below is a rough guide to improving your mpg/reducing your running costs... Last edited by Barry123; 28th February 2012 at 10:58. Reason: Further improvements.