Sainsburys Petrol

aliEnRIK

Hi all

Basically I am letting anyone that may be interested about my findings regarding petrol. I have a 2004 Mondeo 1.8 Petrol car, has about 42k on the clock and for years I had used either Asda, Morrisons or Tesco for my petrol due to either convenience or money off.
At this point I was averaging 30MPG.
I live in the North west and drove to Thorpe Park. On the way back I was forced to use Sainsburys before driving back. I noticed I was doing incredibly well on fuel consumption going back home compared to when I traveled to Thorpe (Just by looking at the tank levels).
I did a little digging and the general consensus is that fuel is fuel. When I eventually came to fill up again I went for sainsburys again and did better MPG at 34. The next time I went to Morrisons as a comparison and was back to 30. So far I have consistently been going to Sainsburys and getting another 4MPG (At least according to my dashboard and miles per full tank as a secondary check). Nothing major, but a saving all the same (At least where I live, and it equates to around an extra 50 miles or so per tank) - and they have a 'free to use' tyre pump.
It could be some strange anomaly with my car but maybe others have had similar experiences or maybe try this out?

prowla

Is your Sainsburys garage nearer? :-)

aliEnRIK

prowla wrote: »

Is your Sainsburys garage nearer? :-)

No (In fact its further than all of the other 3). But why would that make a difference to my MPG anyway?

Browntoa

I thought there was a difference in the additives that each supermarket adds to the core fuel ?

Browntoa

http://www.autofuelfix.com/blog/supermarket-fuel-vs-branded-fuel-whats-difference

aliEnRIK

Browntoa wrote: »

http://www.autofuelfix.com/blog/supermarket-fuel-vs-branded-fuel-whats-difference

That was my general thoughts

Browntoa

My car seems to run better on Shell petrol rather than the stuff from tesco at the same price

neilmcl

For some reason my cars have never got on with Morrisons (diesel) fuel, take that as you will.

takman

I always run my car on Bulk Diesel, it has no brand name and is bought in bulk at the cheapest possible price so has the bare minimum additives to conform to the UK specs.
I had it on a rolling road last week and at 192,000 miles it was producing the same horsepower it came out the factory with and slightly more torque!. It also does better MPG than those stated by the manufacturer.

So that just shows that even on the most basic of fuel cars run exactly how they should.

And if your interested when I drove to Thorpe on Sunday I did 59MPG on a 200 mile trip.

forgotmyname

So your trip to Thorpe parl was a longer one that gave better fuel consumption and now your back to your normal driving and the fuel consumption had returned back to the normal average?

Bit like the rolling road tests they show look we test the car and then add this and retest it and its improved the performance. They forget to mention that a lot of cars will have more power on the 2nd run because the ECU will be adding more fuel compared to your everyday drive where it wont be hitting the red line.

takman

forgotmyname wrote: »

Bit like the rolling road tests they show look we test the car and then add this and retest it and its improved the performance. They forget to mention that a lot of cars will have more power on the 2nd run because the ECU will be adding more fuel compared to your everyday drive where it wont be hitting the red line.

That's not true at all!. A rolling road is the way that the BHP of a car is tested and that's how the manufacturers come up with the figures they provide when you buy a car.

When your car is tested on a rolling road they produce a graph that shows the BHP and the Torque throughout the Rev range. If you get your car remapped or modified you can then compare the two graphs and see how this has changed throughout the Rev range. So if you want to see how it would affect normal driving you would look at the graph between 1000 - 3000 revs and you will see the improvement.
They don't just improve the total power at maximum revs because the adjust the mapping throughout the Rev range.