Hike in fuel consumption!

I've just returned from a trip down south, filled the car up, 80 quid, and managed 515 miles before the reserve light

Surely somethings not right! Most of the trip was spent at 80-90mph including a few asshole elimination manouvers.

According to http://www.fuel-economy.co.uk/calc.shtml it works out around 35mpg?

The only change I've made is a double de cat. Would this improve fueling on a long run?

Around the doors driving is still as bad as it always has been, around 20.

Ben

Did you drive 515miles in one go, or two? (or was it more?)

I would expect MPG to increase with fewer stops or changes in speed. Town driving for example, is always an MPG killer.

Is your car an N/A?

I get about 240miles out of a full tank with a TT.

If anything I'd have thought a decat would increase fuel consumption.

I did it in two runs, one there and one back.

Its an NA Aero, whole trip with top off.

I too was expecting consumption to increase with the decats.

Strange, was the entire trip downhill?

If you had a dodgy lambda that suddenly started working again, would that explain it?

Like if wiring or the like was disturbed while the decat was being carried out?

Trip was flat mainly, untill the north east anyway!

Fuel consumption is still crap around town, ie I used a tenner's worth this morning having a play on the way to work.

did you drive half of it and then just push the car for the other half?

If you can hold a steady speed (even if it is on the large side of 70) then you'll get good fuel economy.

The calculation is only correct if you were at the same petrol-level point before putting £80 in as you were when you "stopped the clock" at 515 miles. If the warning light wasn't yet on when you filled up with £80 it will give you reading that is over-optimistic.

Light came on, reset trip indicator, then filled it up, and took the reading of 514.something as soon as it came on again.

Thats more than my integra could pull out of a tankful.

That's mental! I get next to nothing out of mine (comparatively, of course). Drove 480 miles and that was about £130. This was last July so the petrol prices were 108.9 for V-Power.

That's 119.375 litres (26.26 (imperial) gallons) so I was getting 18.28mpg.

That was about 95% (or more) motorway driving as well.

Oh well!

Yours looks far from a boring N/A though!

I put in regular unleaded (BP) @ 118.9.

That's not mine in my avatar! That's just something I aspire to! I have a NA-TT 5 speed sitting around 340bhp.

Is your odo reading in KM's still? I'll only get 300 miles max, even steady driving from my NA!

No, its in miles.

Driving normally, ie thrashing it, 300 is about right.

Not surprised at an n/a returning this figure,regularly had over 30 on long trips,making it a very good compromise car:)

It's a converted na to tt, so tt engine with 5 speed box..

I reckon you need to check your ODOmeter. I think your speedo has been converted to miles but your ODO left as KM (best way to do the change in my opinion). That would make far more sense.

plus.... I am not sure where your trip south was to but Brighton to Northumberland is only 373 miles so 515 miles you must have driven back from france and over the sea

its definately in miles, I went from amble to cambridge, and back. Funnily enough thats where the extra miles were from!

i done 540 miles on £70 of fuel which i think is decent enough considering its a 3litre engine!

plus she is needing a full service so can imagine it been even better!

i done 540 miles on £70 of fuel which i think is decent enough considering its a 3litre engine!

 

plus she is needing a full service so can imagine it been even better!

at what speeds? I was getting 515 at 80-90 leptons, the odd blast to 110.

at what speeds? I was getting 515 at 80-90 leptons, the odd blast to 110.

70-80MPH

and the odd 100+

In my NA I have only calculated my mpg twice... and each time I got around 17.6 mpg but I do tend to drive it like I stole it most of the time.

Best I have done is around 170 miles to half a tank... I havent done the calculations but i would like to think that is good. as I was driving like a granny doing 60 mph all the way there.

Cant believe I want a TT

So its about right then. I'm still debating whether to purchase a cheap little run about.

So its about right then. I'm still debating whether to purchase a cheap little run about.

Car price + insurance + road tax + servicing... does it actually always work out "cheaply"?