Anyone...please!

tristanjustin · Post by **tristanjustin** » Sat Jan 27, 2007 6:10 pm

Just a quick one guys-after reflecting on your ideas and suggestions-i have come up with some questions as to how i can improve my fuel consumption(in every way and in any way possible)...
1. would changing my whole exhaust system help? I read somewhere that by giving more space for the engine to breath more freely will result to more power and mileage.
2.I read somewhere as well that by adding in more air into the intake manifold or something(if my memory serves me right-i hope)will give more power and mileage to the vehicle,so would it help if i add another gadget(say a secondary turbo or whatever do you call it) just to help suck in more air to the engine?
3.and also the suggestion of van"magnets"
OR all of these are just one of those crazy ideas(waste of money)? I already tried my best when it comes to the regular maintenance and driving habits.

Veg_Ian · Post by **Veg_Ian** » Sat Jan 27, 2007 6:56 pm

it has been consuming in the area of 22mpg to 26mpg daily driving. no fuel leaks, and no previous service on this part

So you don't have a problem then, that's normal. Just accept that it doesn't really get much better than that. If it aint broke don't fix it!

dandywarhol · Post by **dandywarhol** » Sat Jan 27, 2007 7:54 pm

worth also checking the accuracy of the high achiever's speedos/odometers.................most are inaccurate by 5 - 10%

jimsmimm · Post by **jimsmimm** » Sat Jan 27, 2007 8:31 pm

never tried the filter -rejet -big bore exhuast ,on a car but done it numerous times on bikes and fuel consumption always goes down, power did always go up though.....if you do find the holy grail of reduced fuel consumption please let me know as mines is bloody awful but it is a two ton van with a kitchen in the boot.......

dandywarhol · Post by **dandywarhol** » Sun Jan 28, 2007 12:23 am

I've a friend who was persuaded to buy a new Transit this year by the "38 mpg" claims during the sales pitch.
With only 3 trials bikes on board and a run down to the Lake District is only returned 27 - the ol' Bongo isn't bad for what it is...........

johnzbenson · Post by **johnzbenson** » Sun Jan 28, 2007 12:58 am

I thought that my manual 2.5td 4wd Bongo would do slightly better than the Auto version for MPG. If I drive like a clergyman I get about 28MPG but just driving normally I'm afraid its only22-26MPG. It would be better if it was 2WD as when backing off the acclerator you can feel the mechanical resistance of all of those differentials etc as opposed to driving a normal car but lets face it its as aerodynamic as a garden shed there is abit of weight being carried about and above all else they are bloody fantastic. If you want better MPG wait for the warmer weather and just put ten litres of veggie oil in with enough diesel for a full tank, the financial offset will be like gettinga couple of extra MPG. I won't go into the detail of tax and technical stuff as it has been done to death on here. the only advice i will give is Don't suddenly add alot of veggie oil to a vehicle that has ran most of its life on diesel, start introducing alittle at a time. the reason? it will clean out all the crud in your tank and fuel lines. a sudden changeover can result in the all the crud moving in go. You will probably find as well that when the MOT comes round your emissions improve and the engine might even be a little more responsive

Seeker · Post by **Seeker** » Sun Jan 28, 2007 12:18 pm

CHecked my fuel consumption over 3 months varied driving the average is 24mpg.

Dont fiddle with yer pump, you are doing OK.

neil/di · Post by **neil/di** » Sun Jan 28, 2007 2:07 pm

I used to get 35mpg or so my calculations told me,untill i put tyres on to give the correct rolling radius,then hey presto just lke everyone else 26/27 mpg,so I think that some of these higher mpgs could well be down to tyre sizes.(and who said that size doesnt matter)

Neil

Glynanderson · Post by **Glynanderson** » Sun Jan 28, 2007 6:27 pm

Hi tristanjustin,
I've got an auto 2wd, never reached 30 mpg, 22 to 26 seems about right.
28 on a motorway run unless I go over 70mph, then it starts to drop again.

As to changing exhausts etc, have you ever done the sums to work out how long it would take to recoup such an "investment"?
An increase of 26 to 30 mpg is only going to save you about 2 Pence per gallon (at 90p per litre, I think)
So, average of 10K miles per year @ 30mpg = 333.4
@ 26mpg = 384.6
Thats a saving of 51 gallons per year, about 200 Quid.
Certainly not to be sniffed at, but not really worth investing in new exhaust systems.

The best way of getting better mpg in any car is normally driving stylr.
Why not fit an after market cruise control system, they are supposed to help consumption figures.

Hope this is of some help or comfort,
Cheers,
Glyn

Anyone...please!

The great MPG debate