J4CKO

iTrader: (1)

I am trying to conserve fuel at the moment, because its stupidly expensive but also its a bit of a challenge, have managed to get my Saab 9-3 Aero (remapped to 250 bhp) from 23 MPG to 34 according to the computer just by careful driving, anticipating things better and not booting it, also seeing if I can do a whole journey without using the brakes, just slowing down by backing off or using the gears. Only doing a 14 mile commute as well, I suspect I might get more on longer runs.

I will confirm it by working it out based on how much I put in but at the moment the computer shows an 11 MPG improvement or getting on for 50 percent, now it might not be spot on but the signs are positive, plus it shows how inneficient my driving was before.

I am not holding anyone up, still making progress, it fits in with the combined figure for my car of 33.2, I often wondered how they got those figures !

DCI Gene Hunt

I've managed to get mine up to 21.9 mpg.... well chuffed

Janspeed

iTrader: (1)

On combined use and booting it every now and then, I was getting an average 10 litres for every 100 kms, or in this case 400-480kms on each tank.

My objective is to get about 600 kms per tank by the end of this month.......we shall see!

Tam the bam

You really should sell the Quattro and get a 2CV

Although 'Fire up the Dolly' doesn't have quite such a good ring to it!

Janspeed

iTrader: (1)

So, is this gonna happen or what?

We do a weekly or every tank/mpg update?

mart360

Average is 50.4 for me

66.0 when i,m trying hard.


80.0 at a steady 56mph, and never over 3k (i dont believe it though)

i think it was a lucky deceleration technique

Mart

mart360

cruise control on its more accurate at controlling speed than you are.


then you can take part in the no brakes to work challenge

let the CC do all the work, and see how far you can get without braking on the works run.


MArt

Diesel

I got 88 miles out of a tankfull on Saturday - use it before its gone is my motto (that and my electric bike thread ) D

Janspeed

iTrader: (1)

The car is.......?

Scoobychick

iTrader: (1)

As much as 20 - 22mpg for me on a good day I start out with good intentions of saving fuel but the fun factor soon takes over and I can't resist

Dieseldog

I remember Clarkson saying it was more economical to leave a car in gear while slowing rather then knocking it into neutral. Anyone explain why?

mannyo

Your car uses zero fuel on the overun, when slowing down all the fuel is passed back into the tank, forward momentum keeps the engine going. When you put the car in neutral, fuel is still being used to keep the car idling.

Dieseldog

Thanks Prof! :-)

GrahamG

Tractor

Neanderthal

iTrader: (6)

I've managed to average about 23/24mpg out of the last 5 tanks of fuel in my MY03 scooby.
Not too bad me thinks

Leslie

That is true with modern fuel injection systems which shut down the fuel when the car is on the overrun by sensing the deceleration.

Les

Leslie

Just shows what you can do with a bit of smooth and thoughtful driving. It will also put a lot less strain on your car J4CKO, things won't wear out so quickly. And you can still enjoy your driving.

Les

mmuuzzyy

Its virtually impossible for me to better my mpg unless i drive like a loon everywhere.

if i drove everywhere at 65mph my jeep averages 28 mpg

but due to 30&40mph speed limits im only getting 15mpg average.

3.7, v6, auto and 2 tonne.... never gonna be good for mpg

Leslie

Yes I agree absolutely with what you say about that Dave, and the use of the gearbox for slowing down too. I must say I have not heard of putting it into neutral when slowing down either.

Les

Shark Man

yup, This applies to any petrol engine with electronic fuel injection (barring a few hyper-performance engines) so long as the engine is above a certain level of rpms (usually 1500rpm). And same with diesels since the dark ages.

mart360

Seat Toledo 1.9Tdi 90BHP


old slow but economical

rarely get less than 500 milles to a tankfull (unless towing)


Mart

Baby Scuff

Seat Ibiza 1.9D 59mpg mainly on the work commute including one 50 mile trip with 5 people in the Car. i've actually got used to driving it in the most economical way.

BMW 328i sport - 27mpg, driving in a less economical way

J4CKO

iTrader: (1)

Yes, the coasting thing was just experimenting and I dont think in reality it endangers anyone, but have reverted to the in gear version seeing as it fits in with the electronics.

I am actually enjoing my driving more bizarrely and as Les says its easier on the car, the power is there if I want it, I suspect at 14 miles a day driven like that it will last for ever.

I met the same ****-knocker as the other morning today, Red 08 plate Toyota Auris, he has slavish speed limit observation tendencies as I was sat behind him in a 30 for ages, he was really dawdling considering its a country road that used to be de-limited, I waited for the National Speed limit thinking he was a typical Toyta dawdler, chose my opportunity, indicated and moved to overtake at which point he booted his car, I wasnt going for it, just enough to get past safely so I just dropped back in to see matey waving his arms and gesticulating wildly but he accelrated to the speed limit, i.e. 60 which was too fast for the road really, we get to the next 30 section and he anchored on to slow to 30 then continued at 30 whilst doing his pointing again.

Came across him today, he clocked me, I didnt antagonise him but he did the same again, however today he tackled a streaming wet very bendy NSL road at 60, I didnt try to keep up, I just caught up at the 30 where he anchored on again. I waited for the next NSL bit and got a bit closer and he made a point of wandering across the central line to block any attempt by me to overtake !

So with Bell Ends like that, I am just going to chill out and save petrol, then at some point get out and slap the pillock !

Shark Man

BMW 325 auto 31.7mpg over 548 miles....average speed 70.3mph (And that included 30 miles of city driving after I reset the trip computer )

messiah

51.2 mpg in a petrol 948cc Citroen AX on a 55 mile daily commute. Takes £39 to fill and I'm averaging 415-430 before the warning lamp comes on - could be even more if it ever gets a service. Quite enjoy rubbing it into the office eco-warrior who drives a diesel Citroen which costs him 4p per mile more to run.

Only downside is that it struggles to overtake parked cars..

Dread to think what the Scoob would be!

bigvern

iTrader: (1)

Also fit a boost gauge, it will tell you when the turbo is starting to boost & use a lot more fuel. My old golf's MFA used the vacuum from the manifold to calculate the mpg. I think the ecconometer (sp) on BMW works in a similar way.