Hi all , iv got a 98 , r plate 2.0 20v, and last weekend i had my exhaust rear box repaired(loadsa welding) and whilst waiting for that to cool i ditched the battery and cleaned ,re-gapped my plugs,done the usual oil n water checks, and tyre pressures , the price of petrol was 111.9(total garage near dagenham pool) i put in 5gallons and iv just noticed iv done 257.6 miles. This includes 130miles of motorway driving at 65-70mph and the rest is round town stuff , can anyone tell me a formula to properly work out my true mpg and also if the above is good/average or 'bugger me ! -how much??'.
Many thanks ff.

Joker

imthejoker said:

Hi all , iv got a 98 , r plate 2.0 20v, and last weekend i had my exhaust rear box repaired(loadsa welding) and whilst waiting for that to cool i ditched the battery and cleaned ,re-gapped my plugs,done the usual oil n water checks, and tyre pressures , the price of petrol was 111.9(total garage near dagenham pool) i put in 5gallons and iv just noticed iv done 257.6 miles. This includes 130miles of motorway driving at 65-70mph and the rest is round town stuff , can anyone tell me a formula to properly work out my true mpg and also if the above is good/average or 'bugger me ! -how much??'.
Many thanks ff.

Joker

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The best way to know you rmpg is log it on a regular basis brim brim. I then feed the litres, miles covered (in my case clock reading), price into a website called www.fuelly.com where I can track my usage and see how others do.

Here's some tips on how to use it - tips

Trev

Trv , many thans for the info ,il look into it soon as im back from holiday - iv always kept all the fuel receipts and wrote my milage on them so i can keep an eye on my economy, thanks again.

Joker

imthejoker said:

Trv , many thans for the info ,il look into it soon as im back from holiday - iv always kept all the fuel receipts and wrote my milage on them so i can keep an eye on my economy, thanks again.

Joker

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no problem Joker

There's a collection of us here who use that site


Trev

Our 1.8 Weekend gets over 40 mpg on long motorway runs(brim to brim method ) and 30+ otherwise. Too big an engine for the size of car will give poor results as it works at a low effective compresion ratio, too small and it will use lots of fuel working hard overcoming its internal pumping losses. Economy driving makes a big difference and gives you something to think about on long journeys.
http://en.wikipedia.org/wiki/Fuel_economy-maximizing_behaviors
among loads of others on the web. Sometimes you see carrying your speed round corners suggested but I'm sure you spend more on tyres than you save on fuel. If its a choice between being safe or economical, then push that brake or throttle pedal. eg, dont hang about passing 2 lorries neck and neck in lanes 1 and 2.

I've found I can get 430 miles out a single tank. But it's a damn big tank.