Actual Fuel consumption

Westernman

Im sure its been asked before but im curious about cars and the actual fuel comsumption drivers are getting. I dont understand mpg but getting a handle on litres per 100km. Looking at the dash on a Honda Hybrid recently and it was saying the car gets average 8.8l per 100km which i think is poor for this type of vechicle. Recently I covered similar journeys in 2 different cars and was shocked at the fuel consumption difference.

Renault megane manual grand scenic 1.5 diesel, 5 passengers 800km journey Cork-Dublin-Cork and some city driving in both citys average consumption 5.6l per 100km.

Volvo geartronic 2.5T Petrol 770km cork-dublin-wicklow-cork 5 passengers and got 10.8l/100km

What consumption are you getting in your car.

650Ginge

Westernman wrote: »

Im sure its been asked before but im curious about cars and the actual fuel comsumption drivers are getting. I dont understand mpg but getting a handle on litres per 100km. Looking at the dash on a Honda Hybrid recently and it was saying the car gets average 8.8l per 100km which i think is poor for this type of vechicle. Recently I covered similar journeys in 2 different cars and was shocked at the fuel consumption difference.

Renault megane manual grand scenic 1.5 diesel, 5 passengers 800km journey Cork-Dublin-Cork and some city driving in both citys average consumption 5.6l per 100km.

Volvo geartronic 2.5T Petrol 770km cork-dublin-wicklow-cork 5 passengers and got 10.8l/100km

What consumption are you getting in your car.

Here we go again.

Yes that's bad from the Honda, must have been floored.

Try fuelly.com or spritmonitor.de.

How you drive matters just as much as the car?

Max Power1

Westernman wrote: »

Im sure its been asked before but im curious about cars and the actual fuel comsumption drivers are getting. I dont understand mpg but getting a handle on litres per 100km. Looking at the dash on a Honda Hybrid recently and it was saying the car gets average 8.8l per 100km which i think is poor for this type of vechicle. Recently I covered similar journeys in 2 different cars and was shocked at the fuel consumption difference.

Renault megane manual grand scenic 1.5 diesel, 5 passengers 800km journey Cork-Dublin-Cork and some city driving in both citys average consumption 5.6l per 100km.

Volvo geartronic 2.5T Petrol 770km cork-dublin-wicklow-cork 5 passengers and got 10.8l/100km

What consumption are you getting in your car.

40 rods to the hogs head?

CiniO

Westernman wrote: »

Im sure its been asked before but im curious about cars and the actual fuel comsumption drivers are getting. I dont understand mpg but getting a handle on litres per 100km. Looking at the dash on a Honda Hybrid recently and it was saying the car gets average 8.8l per 100km which i think is poor for this type of vechicle. Recently I covered similar journeys in 2 different cars and was shocked at the fuel consumption difference.

Renault megane manual grand scenic 1.5 diesel, 5 passengers 800km journey Cork-Dublin-Cork and some city driving in both citys average consumption 5.6l per 100km.

Volvo geartronic 2.5T Petrol 770km cork-dublin-wicklow-cork 5 passengers and got 10.8l/100km

What consumption are you getting in your car.

Renault and Volvo consumption on described routes look about allright.

But Hybrid Honda 8.8l/100km is way too much IMHO.
I got Toyota Prius last year as rental car, and even though I was flooring it nearly all the time, it wouldn't go over 6 l/100km.

My own cars average:

Fiat bravo 1.2 petrol - 6.8 l/100km.
Mazda 6 2.0 petrol - 8.4 l/100km

Both driven mostly on narrow windy and hilly country roads.

unkel

Those figures look very much ballpark, Westernman. Hybrid was never going to be good with a petrol non-turbo engine. Batteries are very heavy and outside of city driving you are in a lose lose situation

I am used to driving big / heavy / performance / petrol V8 automatic cars and over the years I managed not much more than 20MPG (about 14l/100km) in Dublin city driving. My more recent cars have smaller engines but the fuel consumption in heavy Dublin traffic (mainly short trips) is not much better

Having said that, on a recent trip down the country using a very light, but not slow foot, I managed 6.9l/100km in my big heavy fully loaded Saab 2l turbo petrol with 5 people on board

Jimbob 83

My brain only works in MPG sorry

unkel

Jimbob 83 wrote: »

My brain only works in MPG sorry

Fair enough, old man. But if your brain is incapable of using google, you're fukced

650Ginge

Hybrid was never going to be good with a petrol non-turbo engine.

What is with the hybrid bs. 8.8l/100 or around 30 mpg Unkel you think that is about right. Rubbish. There 159 hinda civic hybrids on spritmonitor.de averaging 5.75l/100. Highest is under 8/100.

mathepac

spirtmonitor.de is good, I've used it for the last few years since 2008.

I'm less happy about the accuracy of in-car fuel computers. A lot of them work by averaging the last 50 miles / 80 kms fuel consumption. For petrol cars, fuel comsumption measured in litres or gallons for a given distance is open to fluctuation, summer -vs- winter. Petrol is a volatile liquid so a litre in summer is different to a litre in winter (the reason for the expansion capacity built into fuel tanks, and the reson F1 cars etc are fuelled by weight (kgs) rather than by volume).

I used the 'brim-to-brim' method to check the fuel computer summer and winter and the variability in mpg is significant.

For my diesel Skoda Fabia vRS 1.9 TDI 6.36l/100km

slave1

Toyota Avensis 1.6L Petrol 8.3/100km
Ford C-Max 1.6L Diesel 6.4/100km
Ford S-Max 1.8L Diesel 8.2/100km

Info from last 3 cars we've owned, mostly short work/school/town trips.

Green Diesel

'98 Nissan Almera 2.0 diesel 5.8/100km
'00 Volvo s40 2.0T petrol 8.8/100km
'07 Fiat Panda 1.2 petrol 5.6/100km
'07 Kia Carnival 2.9 diesel 9.2/100km
'02 Seat Toledo 1.9T diesel 4.3/100km

yllw.ldbttr

06 BMW 320 CD 2.0 Diesel.

Motorway driving around 6.1 L/100km
Mixed driving around 7 L/100km

Extremely boring driving being as fuel efficient as I can ~ 5 L/100km


I use the "Road Trip" iphone app to track consumption everytime I fill the tank.

ThisRegard

Westernman wrote: »

Renault megane manual grand scenic 1.5 diesel, 5 passengers 800km journey Cork-Dublin-Cork and some city driving in both citys average consumption 5.6l per 100km.

Grand megane 1.5dci, city driving I average around 5.6l/100. When I bring in motorways or journeys involving long stretches on national routes I got it down to 5.4l/100 on my last full tank.

Edit, not the same car.

Westernman

With fuel cost now these differences are something to take into account when making a decisions on choosing a new car. I think petrol is better for motorway driving but the stop start of towns and urban traffic diminishes any advantage. I live on top of a hill with about a 4km climb up to the house and have noticed the petrol car dashboard stats for this small climb crazy, I can loose over 150km from a remaining 400km journey distance. I know this is all relative and dont put a lot of faith in the stats from the cars dashboard but certaintly I notice the difference between filling one car and the other. So I believe if living on a hill diesel is the way to go as I reckon the cars torque allows it to take these hills in its stride. I know driving styles effect consumption but is as boring a s**te driving with a feather touch on the pedal especially over long journeys and when you have that bit of power.

There must have been something wrong with the stats from the Honda Hybrid. Was thinking of changing the volvo for a laguna 1.4 diesel because im so impressed with the meganes fuel consumption. We have had loads of electrical issues with this car in the past but apparently since renault and nissan are the one these have been resolved. Must check that "road trip" apt its a new one on me.

Wow green diesel those stats from the Seat Toledo look very good 4.3/100km so that the best so far.

ThisRegard

I wouldn't agree the petrols are better for motorway driving, and an engine that small in a Laguna would be pointless, you'll loose and fuel savings because of the extra work the engine will have to do.

Westernman

ThisRegard wrote: »

Grand megane 1.5dci, city driving I average around 5.6l/100. When I bring in motorways or journeys involving long stretches on national routes I got it down to 5.4l/100 on my last full tank.

Edit, not the same car.

My wife was telling me she gets around 5.5l/100km but this last journey we were heavy with 5 ppl, 2 bikes, luggage, and the car is up in the 90,000km and although I tried to use a light touch was getting frustrated after a few hours.

Thats why was thinking the laguna because surly its more streamline and will offer less resistance to wind.

vectra

Octavia 2.0 vRS cr170 = 44mpg 6.3 liters/100 km average

Toledo 1.9 td = 56 mpg 5 Litres/100 km driven easy

kirving

You're not losing 150km's woth of fuel over a 4km hill. The car is working out maximum range based on the average fuel consumption over the past km or two. What its really saying is that it has to work about 2.5-3 times as hard when climbing a hill as opposed to flat driving.

This can mean lots of things, eg:
1. Your car is extremely effecient on the flat(at a specifiv rev range)
2. The hill is steep.
3. The fuel gauge is affected by the hill.

I wouldn't give it much attention over such a short distance. In general, a diesel will have better fuel effeciency than a petrol on a motorway.

Frank11

2006 Ford Focus 1.6 Ghia

8.99l/100km using FuelLog app

There was an article on the radio some weeks ago (The Last Word, Today FM) about how the stated fuel consumption stated by manufacturer differed to actual during tests.

mrpdap

Does the age of a car impact fuel consumption. Mine is 12 years old, over 220k miles, well maintained, getting approx 35 mpg / 8l 100k. Petrol, 1.8

ShadowHearth

Skyline gtst 20l+/100km 400hp, mixed driving. ( dont have it anymore)

Ford mondeo 1.6 +/-8l/100km

Mazda mx5 around 10l/100km, but it was very mixed driving. You can't just drive that car in boring mode.

Subaru wrx ???/100km. I don't own it long enough, but I don't expect to see a good figure, though should be better then skyline.

galwaytt

Jeebus, that Honda figure is awful.

I've just bought a 2005 Saab 9-5 2.2TiD auto, estate, and been clocking the mileage on a tank-tank basis.

On a 100 - 120km/h jaunt on the motorway, it's around 6.8l/100kms, but in mixed driving, including school run and Galway traffic, it's about 7.4l/100kms.

And that's an automatic.

I'm quite sure it can do worse, but so far I can't complain - the car was half the price of a comparable Audi.

bladespin

Golf Plus 1.9 TDi auto around 45mpg, good bit of motorway work in that.

Mondeo 1.9 TDCI 50mpg (didn't seem to matter how I drove it really ?)

Alfa 156 JTDm 1.9 52mpg mostly open road around the 50-60mph mark.

Merc E240 2.7l petrol 28-30mpg, mostly motorway, a noticable variation if you accelerated hard from the toll booths (seriously).

George Dalton

2000 Audi S4 2.7 Biturbo - 25.6mpg (11.0 l/100 km) tracked on fuelly.com over 57 fills covering 15000 miles so pretty accurate.

gollywog

George Dalton wrote: »

2000 Audi S4 2.7 Biturbo - 25.6mpg (11.0 l/100 km) tracked on fuelly.com over 57 fills covering 15000 miles so pretty accurate.

I never thought that would be possible! Is that your own car george?

Paddysnapper

Volvo V70 Estate 1.6 drivE Diesel 2010
Overall 5.2-100km
Motorway run 4.8-100km

For MPG people 5.2 equates to 52mpg

If you are looking for economy keep your rpm at 2000 over that it's gulp time, on a motorway trip I can cruise at that at 110kmph

dudara

2000 BMW 318i 1.9 litre > 7.6 l/100 km (37 mpg)

About 600 km a week with 500km on motorways, the remainder in town. The majority of motorway driving is done with cruise control set at about 126-128 kmph. I often wondered how my car compared with others, but it's not too shabby overall, given it's size and generation.

galwaytt

Paddysnapper wrote: »

If you are looking for economy keep your rpm at 2000 over that it's gulp time, on a motorway trip I can cruise at that at 110kmph

....indeed, and, conversely, lugging it around at 1500rpm won't be an improvement and fubar the DMF whilst it's at it.

Just on, or over peak torque rpm for any given engine is the best place, imho, and forget roadspeed.

Max Power1

Westernman wrote: »

I think petrol is better for motorway driving but the stop start of towns and urban traffic diminishes any advantage. .

Logic would disagree with you!
The point of diesel is long distance at constant speed cruising

George Dalton

gollywog wrote: »

I never thought that would be possible! Is that your own car george?

Yes that is my baby. To be fair that average includes quite a bit of motorway work so is probably about the best achievable for the car. Doing short runs 21-22mpg would be more realistic.

Stealthirl

if my sums are right

Currant car
05 Skoda Octavia 1.9D DSG
6,67L/100km or €10,33/100km 5.288km and 353L

Car i had in 2010
07 Seat Altea XL 2.0D DSG
6,43L/100km or €9,09/100km 10.290 km and 662 l

Weekend car
93 Toyota soarer 2.5TT AUTO
18,02L/100km or €28,97/100km

ShadowHearth

Never knew soarer were so brutal on petrol!

Stealthirl

well that data is mostly from only 2-3K km as the cars not been in use since Feb 2010
On long trips to the UK i was geting much better
Its modified aswell.

the 4L and 3L soarers are better on juice

gollywog

George Dalton wrote: »

gollywog wrote: »

I never thought that would be possible! Is that your own car george?

Yes that is my baby. To be fair that average includes quite a bit of motorway work so is probably about the best achievable for the car. Doing short runs 21-22mpg would be more realistic.

If I had known that was there the other day I would've asked to see it, ragin'!

Leonard Hofstadter

Can we all please use mpg? My brain does not understand l/100 km, whatever that is - it could be anything to me;)!

And yes for the smart arses I know there is Google, but I have better things in my life to be doing than converting 20 or 30 fuel economy figures to something most people actually understand!

biko

I get roughly 30 mpg out of an old e36 320i mixed driving. That's about 9.42 L/100km
Can drop to 20 just in city, short hops.

Best I ever got was motorway over to Dublin and back one weekend, 38 mpg/7.43 L/100km

George Dalton

gollywog wrote: »

If I had known that was there the other day I would've asked to see it, ragin'!

You'll know for next time sure

gollywog

George Dalton wrote: »

gollywog wrote: »

If I had known that was there the other day I would've asked to see it, ragin'!

You'll know for next time sure

Hmmm, must think of something to get done to the car so ha!

Westernman

Paddysnapper wrote: »

Volvo V70 Estate 1.6 drivE Diesel 2010
Overall 5.2-100km
Motorway run 4.8-100km

For MPG people 5.2 equates to 52mpg

If you are looking for economy keep your rpm at 2000 over that it's gulp time, on a motorway trip I can cruise at that at 110kmph

I like that consumption on this size of car I wonder can you change the engines and would it be worth it on these. I had a V70 D5 and was lured my the flash and low purchase cost of an immaculate S80 2.5T. I knew I had made a mistake on the trip home when I saw the fuel level drop than it was confirmed when I went to renew the tax.

Sobanek

01' Volkswagen Golf MK4 1.6 16v - Petrol - 9.1L/100km Average, Mixed Driving
06' Volvo V50 2.0D SE - Diesel - 7.2L/100km Average, Mixed Driving

GhostInTheRuins

08 Astra 1.6 petrol - 6.4l/100km. Mixed driving over 12,000km, so should be fairly accurate.

If you do a horrible old man drive in it, you can shave it down to 5.5l/100km or so out of a tank of petrol, but it's a pain in the arse.