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Has anyone tested the mpg figures across different fuel brands?
Assuming identical driving conditions, should similar miles-per-gallon be achieved no matter which fuel company's products are used? Have results been published of such tests being carried out, comparing all the major brands?
Asked on 21 September 2013 by LJ, Hinxworth
Answered by
Honest John
'Which?' had a go at this, but I don't trust the findings because the tanks would need to be completely drained and the same cars would need to be driven identical (considerable) distances in identical conditions. Michelin manages this for its tyre tests by constantly rotating tyres, cars and drivers over 10,000 miles, but the exercise costs at least £100,000 and no magazine, website or 'consumer' organisation would ever spend this on a test because it could not finance it. I simply stick to one brand: Shell. And in switching from Shell Fuelsave to Shell V-Power Nitro+ I have seen a 9 per cent improvement in economy from a 5.7 per cent increase in outlay.
Real MPG enables you to register the fuel economy you are actually getting against your make and model of car, its engine and type of transmission.
Every time you enter an average consumption figure against your car, the overall average automatically adjusts to reflect it.
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