My MPG..?

nellocono

Hi All,

I am getting seriously worried here after just calculating my MPG...

I filled up the tank with 70 euro petrol, which gives me approx 50.36 litres (1.39c per litre).

50.36/3.785 = 13.3 gallons roughly.

I got 475 Kilometres for the tank. Therefore, I got approx 295 miles.

295/13.3 = 22 :eek:

What the hell...is this correct and should I be worried?

stealthyspeeder

nellocono wrote: »

Hi All,

I am getting seriously worried here after just calculating my MPG...

I filled up the tank with 70 euro petrol, which gives me approx 50.36 litres (1.39c per litre).

50.36/3.785 = 13.3 gallons roughly.

I got 475 Kilometres for the tank. Therefore, I got approx 295 miles.

295/13.3 = 22 :eek:

What the hell...is this correct and should I be worried?

what do you drive?

Ricardo G

What are you driving ?

CiniO

nellocono wrote: »

Hi All,

I am getting seriously worried here after just calculating my MPG...

I filled up the tank with 70 euro petrol, which gives me approx 50.36 litres (1.39c per litre).

50.36/3.785 = 13.3 gallons roughly.

I got 475 Kilometres for the tank. Therefore, I got approx 295 miles.

295/13.3 = 22 :eek:

What the hell...is this correct and should I be worried?

It looks like you took gallon as 3.785 which is probably US gallon.
It's different to UK gallon.

Anyway, from your details seem your fuel consumption is 10.6 l/100km.

(btw it's way easier to count than MPG - 50.36 litres / (475km/100km) = 10.6).

That's not small consumption, but depends what you drive, where and how?

In my car I can do as small as 6 l/100km, and as much as 14 l/100km. Depending on how I drive and where.

EPM

UK gallon is 4.54 litres

stealthyspeeder

CiniO wrote: »

It looks like you took gallon as 3.785 which is probably US gallon.
It's different to UK gallon.

Anyway, from your details seem your fuel consumption is 10.6 l/100km.

(btw it's way easier to count than MPG - 50.36 litres / (475km/100km) = 10.6).

That's not small consumption, but depends what you drive, where and how?

In my car I can do as small as 6 l/100km, and as much as 14 l/100km. Depending on how I drive and where.

l/km

mpg

CiniO

stealthyspeeder wrote: »

l/km

mpg

why?

Anan1

CiniO wrote: »

why?

'Cause he's old-fashioned.;)

stealthyspeeder

CiniO wrote: »

why?

Your newfangled fancy European ways are too much for old fashioned imperial brain to cope with, reading your posts and being able to extract absolutely no information about the fuel economy of your car frustrates me. While you are correct, and it is how it should be measured, I dont care, I understand what mpg is and so does everyone else.

challengemaster

Nah, it's cos he doesn't like seeing how much fuel he's actually burning through

CiniO

stealthyspeeder wrote: »

Your newfangled fancy European ways are too much for old fashioned imperial brain to cope with, reading your posts and being able to extract absolutely no information about the fuel economy of your car frustrates me. While you are correct, and it is how it should be measured, I dont care, I understand what mpg is and so does everyone else.

It's just my lazyness.

But correct me if I'm wrong, in Ireland we use kilometres instead of miles now. (that's what your car speedo shows)
We use litres instead of gallons (that's what pumps on petrol stations show).

So counting fuel economy in MPG is damn difficult to count.

It wasn't my idea to swich to Metric units, but it happened.

challengemaster

Stealthy is a nordie

Also, I'm not sure about most people but I still think of everything in miles

nellocono

I drive a ford mondeo 1.8 lx petrol

So, i used the wrong gallon conversion. So with 4.54 i calculate i am getting 26-27 mpg...

Is this correct and does it seem a bit low? I know the mondeo is kinda thirsty but surely not this bad?

CiniO

challengemaster wrote: »

Stealthy is a nordie

Also, I'm not sure about most people but I still think of everything in miles

How can you do it, if all speed limits, distances, speedometres, odometres, etc are in km?

stealthyspeeder

CiniO wrote: »

It's just my lazyness.

But correct me if I'm wrong, in Ireland we use kilometres instead of miles now. (that's what your car speedo shows)
We use litres instead of gallons (that's what pumps on petrol stations show).

So counting fuel economy in MPG is damn difficult to count.

It wasn't my idea to swich to Metric units, but it happened.

tbf its more my laziness....

I have speedo the set up to display mph, sat nav in miles and i use the price of petrol as a nominal gauge how much money is going to come out when I fill up. Its a lot of work being a metric denier!

CiniO

nellocono wrote: »

I drive a ford mondeo 1.8 lx petrol

So, i used the wrong gallon conversion. So with 4.54 i calculate i am getting 26-27 mpg...

Is this correct and does it seem a bit low? I know the mondeo is kinda thirsty but surely not this bad?

You still didn't answer if you are driving in the city or on country roads, or maybe mostly motorways.
That makes huge difference.

challengemaster

sounds about right, especially if it's mostly urban driving.

The engine in the lx is very underpowered (100bhp) for a large car

challengemaster

CiniO wrote: »

How can you do it, if all speed limits, distances, speedometres, odometres, etc are in km?

Speed limits in km/hr, fair enough
Distances - I never really pay attention to anyway, it's more direction signs are for.
Speedo - Unless I'm driving a jap import or a very new car, which I'm not, it has both
Odometer isn't in Km

Also, it's not that hard to remember what the 4 only used speed limits are in both. 30/50/80/120

vectra

I make that to be around 26mpg

CiniO

challengemaster wrote: »

Speed limits in km/hr, fair enough
Distances - I never really pay attention to anyway, it's more direction signs are for.
Speedo - Unless I'm driving a jap import or a very new car, which I'm not, it has both
Odometer isn't in Km

Also, it's not that hard to remember what the 4 only used speed limits are in both. 30/50/80/120

You forgot about 60 an 100...
I've seen 15 somewhere as well.

nellocono

mostly city driving really to and from work mostly which has some good roads (120kph limit) also...


Right just to go off on a tangent would it be worth while to change car to something more efficient in order to save money...ive always liked the kia proceed? 1.6 diesel should do good mileage

challengemaster

Not unless you're doing a hell of a lot of miles per year, it really won't make that much of a difference

biko

http://www.torquecars.com/tools/uk-mpg-calculator.php

26.63 mpg, sound ok for city driving.

CiniO

nellocono wrote: »

mostly city driving really to and from work mostly which has some good roads (120kph limit) also...

So your 10.6 l/100km seems to be just about right for city driving, especially in winter on colder days, when it takes longer for the engine to warm up.

650Ginge

I use www.fuelly.com to record my fuel useage, depends how you set it up as to how it is displayed, ie mpg or l/100km, I am trying to get used to l/100km.

Just I know what a mile is, I jsut have no concept of what a 0.1 for a liter per 100km really means.

nellocono

Can anyone stagger a guess as to how much I would save per week/month if I was to get something like a kia proceed?

I drive approx 11000 km per year so i know the savings wont be great...

CiniO

650Ginge wrote: »

Just I know what a mile is, I jsut have no concept of what a 0.1 for a liter per 100km really means.

It's quite simple.
Only confusing part is the both of them work opposite way.

Let's say you know that a gallon costs €6.5, so you know that for that you will do 30 miles if your car does 30mpg.

In l/100km it's different.
You know you have to travell 100km, so your car will burn 8 litres of petrol, if it takes 8l /100km. 8 litres cost €11.5 so in other words, you know you need 11.5 euro for every 100km you do.

CiniO

nellocono wrote: »

Can anyone stagger a guess as to how much I would save per week/month if I was to get something like a kia proceed?

I drive approx 11000 km per year so i know the savings wont be great...

There's seems to be 3 different 1.6 diesel engines in those kia's and fuel consumption in them are 4.7, 4.9 and 5.2 l/100km depending on version.

Assume it's going to be 5 l/100km

11000km annualy in your mondeo gives 10.6 l * 110 = 1166 litres.
1166 * €1.45 = €1690

11000km in kia at 5 l/100km = 5 * 110 = 550 litres.
550 litres * €1.38 = 759

You might save €931 a year on fuel, if the fuels prices won't change.

But it might be worse, as diesel in the city on short distances might take more fuel.

challengemaster

nellocono wrote: »

Can anyone stagger a guess as to how much I would save per week/month if I was to get something like a kia proceed?

I drive approx 11000 km per year so i know the savings wont be great...

If you get one, get 44MPG and diesel stays at 1.37

You'll save €878 a year, €73 a month, or ~17 quid a week

Question is, how long do you have to have it until that makes up the cost of buying it?

CiniO

challengemaster wrote: »

If you get one, get 44MPG and diesel stays at 1.37

You'll save €1543 a year, €128.50 a month, or ~30 quid a week

Question is, how long do you have to have it until that makes up the cost of buying it?

How did you count it?
I assumed 5 l/100km (which is 56.5 mpg) and I got much less saving...

challengemaster

CiniO wrote: »

How did you count it?
I assumed 5 l/100km (which is 56.5 mpg) and I got much less saving...

re-read

CiniO

challengemaster wrote: »

re-read

Now looks better

ottostreet

I too am a Metric Denier.

CiniO

ottostreet wrote: »

I too am a Metric Denier.

If everyone here seem to be Metric Deniers, then why so Irish government made a switch to metric units?

ottostreet

CiniO wrote: »

If everyone here seem to be Metric Deniers, then why so Irish government made a switch to metric units?

cos they're ****ing eejits!

Satanta

I have been driving for about 20 years, and in al that time I got used to the imperial MPG way of measuring fuel efficiency. For me to get any meaning out of the metric measurements I need to convert to MPG. I guess I'll get used to it

26 mpg isnt too bad for all city/urban driving. I drive a 2.0 diesel and get about that when driving short urban trips. Only on longer drives do I see the value in owning a diesel.

Basically smaller engined petrol cars are more efficient for urban driving. I used to own a Mazda 3 1.5, and it was great around the town. MPG's in the mid thirty's

pajo1981

CiniO wrote: »

If everyone here seem to be Metric Deniers, then why so Irish government made a switch to metric units?

cos they make a million (mega) times more sense.

Try doing science or engineering using the imperial system and you'll quickly realize why it is being phased out in most places.

zilog_jones

CiniO wrote: »

If everyone here seem to be Metric Deniers, then why so Irish government made a switch to metric units?

For people like me who didn't pay too much attention to their parents and their funny old-fashioned units, were only told metric measurements in school, only ever saw metric distance signs, and started driving after 2005

To those who who are still confused, think of MPG as "fuel economy" and l/100km as "fuel consumption".

http://en.wikipedia.org/wiki/Fuel_economy_in_automobiles#Conversion_tables

HJL

challengemaster wrote: »

You'll save €878 a year, €73 a month, or ~17 quid a week

Question is, how long do you have to have it until that makes up the cost of buying it?

Exactly, the savings would be minimal compared to the cost of changing the car.

Unless of course you were planning to change your car anyway and want an idea of what type of car to buy instead. Although i guess if you were planning on going 08 or newer you would benefit from cheaper tax too.

Henry Ford III

challengemaster wrote: »

sounds about right, especially if it's mostly urban driving.

The engine in the lx is very underpowered (100bhp) for a large car

110bhp I think. It's still underpowered though

Seems fine for urban driving, lets say at 60 mph a car returns 40mpg in 5th at 2500rpm, all urban spins the average speed will be less than 20mph and the recs will be between 1000 and 2500/3000 rpm when moving and at idle at traffic lights the car is obviously not moving. Car is using much the same fuel for the time it's running but less distance.

Anyway metric and imperial, I prefer mpg for cars to be honest, also prefer miles to kms. Was taught both imperial and metric units at school and also used both at third level, both used in industry too, I've seen product drawings for medical devices that have some dimensions in metric and some in imperial, bizarre. Constantly pr1cking about at work with thous and microns.

gb153

nellocono wrote: »

Can anyone stagger a guess as to how much I would save per week/month if I was to get something like a kia proceed?

I drive approx 11000 km per year so i know the savings wont be great...

If costs are your main concern you should look at the whole picture. How old is your car and how much would you get on a trade-in towards the Kia. What would your monthly car loan repayments be like compared to what you are paying now.

I don't really know anything about the Kia but I'd assume you would make a good saving on your annual car tax if the Kia is post 2008. Your fuel costs should come down also but 11000km isn't huge mileage to justify a change to a diesel.

nellocono

nellocono wrote: »

mostly city driving really to and from work mostly which has some good roads (120kph limit) also...


Right just to go off on a tangent would it be worth while to change car to something more efficient in order to save money...ive always liked the kia proceed? 1.6 diesel should do good mileage

You currently get 26/27mpg and travel 11,000km/annum. €1800 should cover your fuel costs, ie €35/week. A ProCeed diesel might return 45mpg for you, so you'll save about €15/week on petrol and €300 odd/annum on motor tax which is €1100 ish a year saved.

Now if the Mondeo is in good condition I don't see the savings as being sufficient to change.
The dealer shafting will account for the first two years savings in diesel and tax anyway.

EPM

Sisters boyfriend has a proceed diesel and it doesnt get anything near mid-40's around town. Mid 30's would be more like it. Around town there's sfa difference between petrol and diesel really.

Eph1958

On the Metric/Imperial aspect of this thread..... our friends across the water are even more confused than we are. Their distances are in miles but they sell the fuel in litres!!! And I have even seen distances on motorways over there in miles and yards as well as miles and decimal miles (eg 1.4 miles). Do we really want to associate ourselves with such confusing nonsense? Time to abandon that imperial insanity and embrace the true scientifically derived, totally European metric system. I really dont fancy driving a 1¾ pint Nissan Micra!!!

Caliden

I don't get why it's L/100km.

What can't they keep the same sort of format and do km/L (as opposed to miles per gallon)
If it was that way, then I might change but as it stands L/100km just doesn't work/apply to me when I'm doing short distances.

challengemaster

http://www.unitconversion.org/fuel-consumption/kilometers-per-liter-to-liters-per-100-km-conversion.html

goes either way (l/100km <-> km/l )

650Ginge

My honda deauville is really messed up it is in miles per litre....I have got used to it, now just need to get my head around ltrs/kms

CiniO

Caliden wrote: »

I don't get why it's L/100km.

What can't they keep the same sort of format and do km/L (as opposed to miles per gallon)

It's a question in style what was first - hen or an egg ?

If it was that way, then I might change but as it stands L/100km just doesn't work/apply to me when I'm doing short distances.

It's perfectly simple.
If your car takes 7 l/100km then it means if you drive 10km, it will take 0.7 litre. It you drive 1000km it will take 70 litres.

So depending how far you want to go, you know how much petrol/diesel you should put into your tank.

Eph1958

Eph1958 wrote: »

Their distances are in miles but they sell the fuel in litres

Ireland was like that very recently. I don't see the problem really.

celticbest

I have a 2006 Citroen C1 for getting in and out of work, it has a 35 Litre Tank & currently costs me about €51.50 (1.469 per Litre) to fill the tank.

I get about 750km out of a tank.

This means I get 21.42km a Litre

Therefore I use 4.66 Litres per 100km

Sorry, I don't know anything about Gallons & Miles as I was thought in km in school as I was in the first year to do the Junior Cert (1992) which did not use miles as it moved changed over to Metric only measurements.