Petrol is not just petrol any more

nomoneytoday

Absolutely ridiculous - the stuff the supermarkets sell is from the same crude oil, only the additives change by brands...

brightonman123

one for watchdog, or top gear, maybe?

chunkytfg

It's totally rubbish...All thats happening is you are being less careful sub conciously because you have paid less. Lets face it is the fuel was twice the price you'd get even better than 47mpg i'd garuntee it.

My car lives on supermarket fuel(over 35K a year) and gets as good as the other places simply because i'm careful. 50mpg regardless of where purchased.

fiscalfreckles

My OH had no end of problems with his car & the mechanic blamed it all on tesco petrol. Since he's stopped buying it, the car has been fine (not so many clubcard points now though!) Never really noticed a difference in mileage though.

glowgirl_2

I said this a couple of months ago that I wasnt happy with Tesco petrol after noticing a difference when filling up at a Shell, everyone thought I had lost my mind and told me not to be so silly, the prices were the same at the time and I didnt change my driving style at all.

goldspanners

glowgirl wrote: »

everyone thought I had lost my mind

i still do, ive not commented on this thread about this because im fed up seeing it here.
ive used tesco for a while but occasionally use other stations,filling both my car and my van and do not notice any difference other than when my driving or types of journeys change. a small change is driving style/ journey type/ journey length/ outside air temperature/ road surface/ tyre pressure/ etc, etc...can make a big difference in fuel consumption. so to measure 2 tanks of fuel all variants above must be the exact same on each tank of fuel.
impossible unless in a controlled environment.

northstar23

glowgirl wrote: »

I said this a couple of months ago that I wasnt happy with Tesco petrol after noticing a difference when filling up at a Shell, everyone thought I had lost my mind and told me not to be so silly, the prices were the same at the time and I didnt change my driving style at all.

I agree with this. My 1.4l Fiesta seems to get through Tesco petrol really quickly, but filling up at Shell or Esso I seem to get far more mpg, something in the region of another 40 miles to a tank at least.

Now the caveat... I'm a pretty decent mechanic & engineer. Logic tells me this has to be a coincidence and that the same base petrol of RON95 would produce close results under testing. However these additives must have an influence and I'm almost convinced that for whatever chemical reason the Tesco fuel doesn't combust as efficiently.

Loraine267

During the last half-term break, I noticed that my Honda Civic was using more fuel than normal but thought it must be my imagination. A friend then told me never to use supermarket petrol stations because they put "more of something in" and doesn't go as far as the likes of Shell or Esso.

I decided to put my car to the test and filed up at Asda, then did the same routine I always do. I then filed up at Shell and that tank went a lot further - two days worth of travelling to and from work. I don't think that's a coincidence and nor do my colleagues who have also noticed that supermarket petrol doesn't last as long.

ozvaldinho

I only get 19 mpg when there's a full moon.

michaels

The fuel companies themselves only claim an advantage with long term usage due to cleaning additives reducing the build up of carp in the engine. Does no one think that if branded petrol gave better mileage straight off the petrol companies would either be advertising this widely or would be downgrading their petrol to be equivalent to the supermarket stuff? Why on earth would anyone sell a better and presumably more expensive to make product and not market it as such?