Quote:
Originally Posted by euromodder
In Europe, so-called premium gas doesn't give any detectable Fuel Economy benefits.
With some of our premium diesel brands though, you can gain up to 3% better FE (error margin is 1%).
(You still lose out on price, as these premium diesels are a lot more expensive.)
That's with scientific testing - repeatedly driving the same profile on a testbank.
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Same here.
Premium unleaded gives a slight improvement in mileage (or kilometerage since we are metric) but the retail price means it costs about the same to travel a given distance.
This has been tested repeatedly by motoring organisations , consumer mags and current affair TV shows.
Diesel is a different ball game on this side of the equator since politics and taxation play as much a part as the actual consumption does.
Peter.