Isuzu Trooper Owners Club UK™

Topvaux

I have a 3.0 Auto and in order to eke out as many miles as I can from the liquid jewellery I'm pouring in my tank (I used to be on 50% veggie but it costs nearly as much as DERV these days so I won't bother until I find some cheap stuff again) Anyway, I pussy-foot about, avoiding the brake pedal as much as possible, keeping exactly to all the speed limits except only up to a maximum of 60 mph on any road. I'm talking true speeds here - checked on the GPS - so 60 = 66 on the clock. Driving this way gives me 27 mpg for everyday shunting about or 30 mpg on a long run with plenty of steady-speed cruising (I have cruise control, too).

The day before yesterday I had to go down to Cotswolds for a new Rail Pressure Sensor and I needed to be away by 10.00 to get there for 1.30 as agreed. We're having a bathroom re-done and the plumber turned up unexpectedly to fit the shower unit I hadn't bought yet! So, being already 10.00 I shot off to Norwich, completely ignoring my "rules" and was doing nearly 90 on the clock (and discovered I have a wheel out of balance!) and generally driving quite aggressively. I delivered the shower unit home and set off for Oxford an hour late, going cross-country rather than the Motorway loop and still driving like a hotshoe boy-racer (well, almost!). When the job was done I thought to myself "well, I've already bolloxed this tank of fuel" so I went home the same, less economical, stop-start route and with the same driving style.

I'd brimmed it for the trip so yesterday I went and brimmed it again to see just how much down on 30 mpg I'd managed to get it.

29.75 mpg!!

So, all that farting about driving like my hair colour gains me ¼ mpg!!!

I feel a Meldrew Moment coming on............ I DON'T BELIEEEEVE IT!!!

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jurrasic1412 · Posted: Thu Jul 10, 2008 14:55 Post subject:

LOL,,,,,,,Typical eh...

Right,,in fear of being called a thick t@@@,, can one of you kind gents explain in laymans terms exactly how this calculation works,,fuel used and mileage etc,,,have NEVER been able to work it out,,, Embarassed

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I dont suffer with insanity,,no really,I quite enjoy it

Topvaux · Posted: Thu Jul 10, 2008 15:03 Post subject:

OK - this is an easy calculation (so long as you have a calculator!

Miles Driven divide by Litres Used divide by 0.22.

So, for example, say you've driven 200 miles and used 35 litres: 200 divide by 35 divide by 0.22 equals 25.97 mpg.

I find "two twos" a useful number to remember for imperial - metric conversions because 1 kilo is 2.2 pounds and 1 litre is 0.22 of a gallon.

jurrasic1412 · Posted: Thu Jul 10, 2008 15:06 Post subject:

Excellant sir,,TYVM.....

May be easy but I did tell u i am thick,,,,,lol

Cheers again,,will be very interesting to see what mines running at with the big tyres and a throttle body needing replacing,,,
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I dont suffer with insanity,,no really,I quite enjoy it

markymoan · Posted: Thu Jul 10, 2008 15:07 Post subject:

Yup
Brim the tank, reset the trip then use the car, fill up again to the brim, jot down how many litres and ~~multiply~~ Divide by 4.56 to get gallons.
take valium then Get the milage from the trip and divide by gallons used = MPG Smile

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Topvaux · Posted: Thu Jul 10, 2008 15:11 Post subject:

markymoan · Posted: Thu Jul 10, 2008 15:17 Post subject:

Ahhh but my way you get 100 mpg Laughing

Same 3 steps apart from the conversion, I must be old as I work out the gallons as I pump it then cry Crying or Very sad

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Topvaux · Posted: Thu Jul 10, 2008 15:22 Post subject:

markymoan · Posted: Thu Jul 10, 2008 15:37 Post subject:

Those roadside speed displays are pretty good but can cause OCD in getting your speed bang on 30,40 etc Rolling Eyes

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jurrasic1412 · Posted: Thu Jul 10, 2008 17:03 Post subject:

Not such an anorak mate,,,lol,,,,

AFAIK my speedo is 2.4 mph out,,,am running 235/85/16,,,,,no idea about the odometer tho,,,thought it would kinda be the same degree out,,,,
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I dont suffer with insanity,,no really,I quite enjoy it

Topvaux · Posted: Thu Jul 10, 2008 17:12 Post subject:

jurrasic1412 · Posted: Thu Jul 10, 2008 17:46 Post subject:

60 as far as i remember,,,,
_________________
I dont suffer with insanity,,no really,I quite enjoy it

Topvaux · Posted: Thu Jul 10, 2008 18:04 Post subject:

jurrasic1412 · Posted: Thu Jul 10, 2008 18:29 Post subject:

yeah,,,when my sat nav reads 60,,im doing slightly over 62,,,can remember reading that with my size tyres,,at 60mph,,i would be doin 62.4 to be precise,,,,,,,
_________________
I dont suffer with insanity,,no really,I quite enjoy it

Mork_77 · Posted: Thu Jul 10, 2008 19:17 Post subject:

When I tried driving sensibly it got me an extra 1mpg I think, was not worth it at all and very boring.
I use an online converter to calculate mpg, much easier than trying to use my brain and a calculator.