Your real world MPG - proof required

EPM

Right, there are some frankly astounding MPG figures quoted here sometimes (even by people that own the Evo in question:D). And a lot of people haven't a clue how to calculate their MPG properly or are relying on their trip computer. Recently I started using a little app called Gas Cubby and it seems to be pretty good for what it is.

So vRS diesel and this is what I get with motorway Mon-Fri and city centre at weekends. This includes ATWR too.



Should have it up to 6k km for the month easily too:D

TestTransmission

Very stealthy advertising, I commend you

EPM

EPM wrote: »

Right, there are some frankly astounding MPG figures ....................... their MPG ........... or are relying on their trip computer. .......................

I don't see any mpg figures there

I use the trip computer, shame on me



Column E is the mpg.

EPM

Fair enough - or litres per 100km...you get my drift.

Just divide it into 282.5 and job done.

Henry Ford III

RoverJames wrote: »

Column E is the mpg.

Note to self:- Buy oil shares!

vandriver

Citroën C4 1.6 Hdi 911 km/ 59 litres so 6.48 l/100km or 43.6 mpg in old money.All city centre.

Henry Ford III

Henry Ford III wrote: »

Note to self:- Buy oil shares!

The depreciation on a new Focus over 12 months would be more than what I spend on tax and fuel in the year

vectra

Mine's in my sig

Padraig Mor

Been using a similar app for the last few months as well.

2005 Lexus GS300 3.0L auto.
20 Mar 2011 - present.

Average economy: 10.64 l/100km (26.6 mpg).
Best economy: 30.24 mpg
Worst economy: 24.9 mpg.
Total travelled: 5538 km
Total fuel: 647.1 L
Total cost: €978
Cost per km: €0.16 actually it's €0.18 - stupid ass app can't do maths.

edit: approx equal motorway / rural / city.

crosstownk

I'm getting around 4.5l/100km from a 1.6 HDi 92hp Citroën DS3. I have managed 3.8l/100km on a 28km trip which includes some traffic, M50 and some back roads.

sentient_6

crosstownk wrote: »

I'm getting around 4.5l/100km from a 1.6 HDi 92hp Citroën DS3. I have managed 3.8l/100km on a 28km trip which includes some traffic, M50 and some back roads.

Think your missing the point of the thread there.

So ill be brimming it tomorrow & i dont have any fancy apps, what ye need pics of my trip before i reset & pic of the receipt?

EPM

Anything that shows a proper calculation really as opposed to just figures or trip figures. Mines about 10% optimistic from my calculations. Apps are just a handy way of keeping track and I only noticed the chart function tonight in it.

Aim is really to get a true figure rather than the utter bull crap thats posted at times.

650Ginge

Henry Ford III

RoverJames wrote: »

The depreciation on a new Focus over 12 months would be more than what I spend on tax and fuel in the year

Not on mine it's not

p.s. Employee discount.

Padraig Mor

Actually EPM our two sets of figures are quite interesting. Almost the exact same number of miles and, while I have quite a few more horses (:p), torque is almost identical so 'real world' driving would be fairly similar. So the penalty for a big lazy V6 petrol auto versus an ultra modern 4 cyl turbo / CR / etc is:

MPG: 26.6 vs 40.4.
Fuel volume: 647 L vs 379 L.
Fuel cost: €978 vs €540.
Cost per km: €0.18 vs €0.10.

Could probably improve my figures about 10% if I did your amount of motorway mileage alright.

Obviously my tax is rather higher too. And my boot is inadequate.....

muckwarrior

RX8, roughly half and half city and open road driving.

kierank01

05 1.4 d4d Corolla Diesel

Kintarō Hattori

Does anyone have some sort of formula to convert the following to MPG?

The Micra drives for about 320 miles on a full tank of petrol which is 42 litres.

Kintarō Hattori

Kintarō Hattori wrote: »

Does anyone have some sort of formula to convert the following to MPG?

The Micra drives for about 320 miles on a full tank of petrol which is 42 litres.

42 / 4.54 = 9.25 gallons

mpg = 320 / 9.25 = 34.6

rabbitinlights

It always seems the people with the frugal engines are always the ones worrying about their MPG and the ones who really spend a fortune at the pumps just pretend it's not really happening.

CiniO

I always note down my mileage on receipts for fuel, and then enter all data to the spreadsheet.

Over last 3 years - - Fiat bravo 1.2 - average consumption 6.92 l/100km
Over last year - Nissan Primera 1.8 - avg consumption 8.24 l/100km

Mike2006

Mine is on my sig as well.

I note the kms every fill and always fill until the pump stops and then go again once more...

Mike.

voxpop

Mike2006 wrote: »

Mine is on my sig as well.

I note the kms every fill and always fill until the pump stops and then go again once more...

Mike.

59 miles per gallon :eek: - that cant be right - can it ??

TrailerBob

03 Toyota Landcruiser 3.0 (old shape) - been keeping an eye on it lately.

Estimate: 40% motorway (empty) 30% rural (empty) 20% mixed (with 16ft trailer and various loads) 10% urban

My last 5 fills as follows:

60.2 litres - 633 km (395 miles)
62.5 litres - 603 km (377 miles)
61.4 litres - 675 km (422 miles)
63.3 litres - 577 km (361 miles)
62.9 litres - 617 km (386 miles)

---

310.3 litres - 3105 km (1940 miles)

Works out at 9.99l/100km (28.15 mpg)

Not bad for a big yoke.

voxpop

Heres mine for the diesel - Fixed a fuel temp sensor and stuck open thermostat around 4/2 on the graph.

2.5 petrol becomes daily in July - will probably notice a little difference

voxpop

voxpop wrote: »

59 miles per gallon :eek: - that cant be right - can it ??

New diesel Golf, don't see why not.
I oftne got 50mpg + from a 97 non intercooled Rover 400 diesel.

voxpop

RoverJames wrote: »

New diesel Golf, don't see why not.
I oftne got 50mpg + from a 97 non intercooled Rover 400 diesel.

Really - I must be doing something wrong then - only time ive ever seen 50+ is when cruising on the motorway,which doesnt count.:pac:

the culture of deference

11 grand megane 1.5 dci

Estimate:
60% motorway
20% mixed
20% urban

My 1st 5 fills as follows:

56 litres - 1233 km
46 litres - 1160 km
46 litres - 1184
44 litres - 1130
45 litres - 7/8 of a tank left

road tax is 9 a month


Works out at 4l/100km (62 ish mpg)

I have started doing 110kmh on the motorway.

Is it more efficient to use cruise control?

Also I can get the car down to 2.5l per 100kmh cruising at 90kmh

n97 mini

No proof, but had a 1.5D Clio eco2 rental in Scotland for the last few days. 55mpg giving it back... and I know I could have easily done better.

V impressed with the economy, would almost tempt me to buy a Renault!

the culture of deference

the culture of deference wrote: »

.............
Works out at 4l/100km (62 ish mpg)

I have started doing 110kmh on the motorway.

..........

You're getting 60 odd mpg and are trying to squeeze out more by travelling at below the limit on the motorway :pac:

the culture of deference

RoverJames wrote: »

You're getting 60 odd mpg and are trying to squeeze out more by travelling at below the limit on the motorway :pac:

The car computer 4l per 100km at 100kmh

and 6.5l at 120kmh

thats a big difference

Mike2006

Its correct alright...

The trip computer tells me that I am doing around 65-66mpg, but when I do the calc myself, I always get between 58 and 62 mpg depending on my driving style...

It is a 1.6tdi. Most of my driving is at between 80-90 kms/hr, 120km round trip every day so they are pretty ideal driving conditions. Not much gear changing etc...

Mike.

n97 mini

the culture of deference wrote: »

The car computer 4l per 100km at 100kmh

and 6.5l at 120kmh

thats a big difference

I've found the same. 120km/h could use 40% more fuel than 80km/h.

Kintarō Hattori

RoverJames wrote: »

42 / 4.54 = 9.25 gallons

mpg = 320 / 9.25 = 34.6

Many thanks sir, it's much appreciated.

rabbitinlights wrote: »

It always seems the people with the frugal engines are always the ones worrying about their MPG and the ones who really spend a fortune at the pumps just pretend it's not really happening.

Well the Micra was just to get her up and running. It probably wasn't a great choice as 90% of her driving is on the motorway, so a bigger engine would make more sense. She's also now complaining that she's a little embarassed to be in the Micra and wants something more powerful! I'm sure I'll be looking for advice here shortly.

the culture of deference

rabbitinlights wrote: »

It always seems the people with the frugal engines are always the ones worrying about their MPG and the ones who really spend a fortune at the pumps just pretend it's not really happening.

I am saving 250 euro a month in fuel and road tax. Thats the car paid for in 5 years compared to my 10 year old 2 litre diesel. Last car was doing 40mpg which isn't too bad.

My mate has a 2.5 s type and 1200+ euro tax and 6 quid + a gallon is no laughing matter anymore.

JerCotter7

I think I am getting about 30mpg. Don't wanna check for sure because I'd rather not know. I am happy enjoying the car rather than worrying about small things.

245

Bit late to the party here but I had to collect some data over time. Trip computer says 5.6 l/100 km but its very optimistic. Legacy diesel BTW - not bad economy for an AWD car. I drove like a nun on the last fill just to see how much I could improve things but it didn't make a huge difference to consumption. My normal driving style is reasonably brisk.

vectra

Mike2006 wrote: »

Its correct alright...

The trip computer tells me that I am doing around 65-66mpg, but when I do the calc myself, I always get between 58 and 62 mpg depending on my driving style...

It is a 1.6tdi. Most of my driving is at between 80-90 kms/hr, 120km round trip every day so they are pretty ideal driving conditions. Not much gear changing etc...

Mike.

What revs is she doing at 80/90??
Watch your DPF if the revs are very low

Berty

Full Tank

60% Motorway/National Roads
40% Rural & City

Taken today in my Passat

Bottom right shows how many KMs since the last fill up.

_Conrad_

My main problem with doing this is that it kind of hurts filling up approximately €100 of diesel in my batterd old workhorse (old passat estate, 70l tank). It doesnt go through it fast enough to get loads of fill ups over a short space of time so this may be a long term thing, i usually fill 25-30l per week and that covers a fair distance. I also don't often use 100% diesel.

However i'd like to know what it's actually doing so i may start working it out properly, i did it for a few previous cars

EPM

Beer Baron wrote: »

Full Tank

60% Motorway/National Roads
40% Rural & City

Taken today in my Passat

Bottom right shows how many KMs since the last fill up.

How many litres did it take to fill the tank afterwards?

Solnskaya

I've a mate who's old and well off, and he drives a big gas guzzling merc. I was going on a spin with him and I asked him what mpg he was getting. He replied that that he puts petrol into the tank when the gauge shows nearly empty and asked me wether him knowing the mpg would make it use less?. Kinda made sense to me, so now I just put fuel in when my car needs it. It aint gonna use less cos you've gone all anal over measuring it.

Berty

EPM wrote: »

How many litres did it take to fill the tank afterwards?

I didn't really pay attention. It only took €83 to fill it so 61 litres I guess. 1.36.9 for Diesel in Topaz in Ennis.

I drove passed many many Topaz Garages to get to this one. Fuel light came on at 110km to go. I was brave to drive with the light on for that long but I passed one Topaz in Galway wanting 1.47.9 for Diesel. Damned If I was putting that in my car, even IF I have a fuelcard from work. Passed I would say around 7 Topaz before I got to the one in Ennis. :eek:

TestTransmission

Solnskaya wrote: »

I've a mate who's old and well off, and he drives a big gas guzzling merc. I was going on a spin with him and I asked him what mpg he was getting. He replied that that he puts petrol into the tank when the gauge shows nearly empty and asked me wether him knowing the mpg would make it use less?. Kinda made sense to me, so now I just put fuel in when my car needs it. It aint gonna use less cos you've gone all anal over measuring it.

I'm the same,I actually have no idea what my MPG is.

Berty

Somebody once said to me

"Why should I carry around 60 litres of fuel with me?"
"So you don't have to visit the garage every 2nd day?"

Used to work in a garage years ago and this girl would come in every single day and get £2.50 worth of petrol. I never understood why.

voxpop

TestTransmission wrote: »

I'm the same,I actually have no idea what my MPG is.

Its good to know - in case it drops off a cliff, you know something is wrong with the car

TestTransmission

voxpop wrote: »

Its good to know - in case it drops off a cliff, you know something is wrong with the car

voxpop

If you are suddenly getting 15mpg instead of the usual 30mpg - you know you have a problem with the car somewhere

TestTransmission

voxpop wrote: »

If you are suddenly getting 15mpg instead of the usual 30mpg - you know you have a problem with the car somewhere

Maybe I'm just having more fun?

voxpop

TestTransmission wrote: »

Maybe I'm just having more fun?

Yeah but you wont know how much more fun you had unless you know what the mpg dropped by :pac:

Solnskaya

I usally know somthings wrong with the car when it makes a different noise-ruum ruum good, no ruum ruum bad.:D I get about 10 cups of coffee a day, usually in filling stations, so visiting a garage is not really a rare occasion.