Which Brand Of Fuel ??

WHG

i heard about this on the forum last week and didnt think anything of it until i did a trip to St George.
i did notice a difference in the mileage coming home on a full tank of Shell diesel.
i think i will be using Shell especially on the longer trips,cheers.

FWIW a test of the cost efficiency of fuel types was done by The Age IIRC here in Melb a few months ago. Compared unleaded, E10 and premium unleaded and found that while cheaper, E10 was less efficient and ended up costing as much as Premium. This was with Camrys.

I've been using the new BP Ultimate diesel whenever I can get it and have noticed a bit more power and a slight improvement in fuel consumption of around .5 litre/100k.

I normally use BP fuels as they are guaranteed, but haven't really noticed any difference between Shell, Caltex and BP when I have needed to use it during my travels when I haven't been able to get BP

One wants to believe that different diesel fuels give different results. Lostsa Pub talk and other wise people :-) Just yesterday I thought that too.

I did a trip there and back around 300km. Had Mobil in the tank going down and into the stiff breeze most of the way and got 15.8/100 and refilled at a Liberty Fuels(not sure which brand) servo at the other end and getting home with a tail wind this time topped up again and had used 20/100. Bugger!!. The road is flattish with a few gentle rises. But what I did not take into account is that I live at 550 metres above sea level and I was down at the turning point to around 5 metres above sea level. So although it isn't that obvious when driving, it is uphill all the way home, hence the greater fuel usage.

Cheers

Hi WHG,
Too many variables to accurately check over the short term; eg, wind, hills, load, etc. Perhaps at test on a dyno with a constant load, monitoring fuel flow would be the only accurate way to test.
But I can say that after 2 tanks over about 1600km with 50% biodiesel proved that it gave poorer economy than conventional diesel. This was with the same load and average driving conditions at 100km/h on a cruise control. The savings in price were negated by the increased consumption.
I've noticed little difference between major brands. But then, most of it in WA comes from the same refinery.
Gerry

Keep good records over say 10, 000ks. Use all the fuels available and keep notes on driving conditions.

Set out the results and if there is a noticeable difference that can't be explained by statistical variation.... then maybe a decision can be made.

Or.... if you get double the distance on a couple of tests.... okay.

Small differences over small distances just can't prove anything.

Work this one out, in Mandurah WA today the Caltex is selling unleaded petrol for $1.08.9 and 200metres up the road on the same side BP is $126.9 ltr and people are still filling up their vehicles at BP.................perhaps they have just received Mr Rudds $900.00!!!