FollowupID: 760769 Submitted:
Thursday, May 10, 2012 at 22:50
Ron N posted:
Nick - Well, the key word is "claiming". I've heard all kinds of BS about fuel consumption over many decades, and 9 times out 10, the figures are "pub talk". People brag about great fuel consumption figures, like they brag about conquests in the sack.
Until you do deadly accurate, side-by-side fuel consumption comparisons, you could argue until sunup about who's getting the best fuel consumption.
Basically, it comes back to any number of factors. Primary amongst these factors is driving style. If you jack-rabbit away from the lights, then hang on the anchors at the next set of lights, you'll hog the fuel. If you vary your speed constantly, rather than keep the pedal steady, then fuel consumption goes up. If you use cruise control, fuel consumption sufffers.
If you don't keep your tyre pressures spot
on, your fuel burn will increase. The amount of kms the vehicles covered (low kms vehicles are still tight) and even wheel bearing tightness, affect fuel consumption. Along with many other variables, such as terrain, prevailing winds, and the amount of "junk" carried around in the car (some people carry 50 or 60kgs of useless, unnecessary stuff around with them) will all affect the amount of fuel used.
So ... until you can get the "braggers" side by side with your vehicle, and do fill-up to fill-up comparisons over the same route, at the same time - I'd be taking the "excellent" fuel consumption reports with the proverbial grain of salt.
Cheers - Ron.