Which Brand Of Fuel ??

Submitted: Tuesday, May 12, 2009 at 22:08
ThreadID: 68772 Views:2326 Replies:7 FollowUps:6
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Was just wondering if anybody has got more or less klms when using different brands of fuel ?? Im very happy with the litres per 100 the prado is using (1KZ T/D 01 Model, Auto) Just did a trip up central coast, pushed it along between 115k/120 with a bit of traffic on Pennant Hills rd and some on the F3 heading back home 3 on board A/T tyres no bullbar (YET) and managed to get 10.4L per 100.....Was told Shell gives more klms per tank ?? True or just pub talk ??............ WHG
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Reply By: Member - Mark G Gulmarrad - Tuesday, May 12, 2009 at 22:15

Tuesday, May 12, 2009 at 22:15

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.
AnswerID: 364585

Follow Up By: Wherehegon - Tuesday, May 12, 2009 at 22:19

Tuesday, May 12, 2009 at 22:19
Thanks Mark, will give it a try when I get through these two tanks, sorry people didnt realize this was asked last week, will search for the post. Thankyou....WHG
FollowupID: 632223

Reply By: Sigmund - Wednesday, May 13, 2009 at 05:44

Wednesday, May 13, 2009 at 05:44
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.
AnswerID: 364601

Follow Up By: Member - Ian W (NSW) - Wednesday, May 13, 2009 at 07:29

Wednesday, May 13, 2009 at 07:29
My FIL did a test driving both ways Sydney to Armidale and return. He was convinced that X fuel was better than Y because on the return trip[ to Sydney he got better economy.

I did not have the heart to point out that Sydney to Armidale was a continuous climb from sea level to the New England Tableland and that the return trip was a downhill run.

There are so many variables I don't believe anyone can do a realistic comparison on fuels of the same grade. The slightest variation in wind speeds, humidity, temperature atmospheric pressure will have some influence. One would need to do back to back comparisons on a dyno in a controlled environment to produce any meaningful figures.

FollowupID: 632245

Follow Up By: Sigmund - Wednesday, May 13, 2009 at 08:53

Wednesday, May 13, 2009 at 08:53
Yes, I agree that a proper test needs to control the key variables.

The Age test from memory ran 3 Camrys over the same route at the same time - which is a better method than most.

Course the biggest single variable is how you drive or ride. With an itchy throttle hand on my motorbike I get 212 km to reserve; with a lazy one it can be as high as 270 km.
FollowupID: 632260

Follow Up By: Member - Mark G Gulmarrad - Wednesday, May 13, 2009 at 09:53

Wednesday, May 13, 2009 at 09:53

i see your point mate but i did see a noticeable difference in how much diesel i used. no ones knows a vehicle like its owner does.
FollowupID: 632270

Reply By: jeepthing - Wednesday, May 13, 2009 at 09:18

Wednesday, May 13, 2009 at 09:18
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
AnswerID: 364615

Reply By: Willem - Wednesday, May 13, 2009 at 10:22

Wednesday, May 13, 2009 at 10:22
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.

AnswerID: 364629

Follow Up By: Member - Axle - Wednesday, May 13, 2009 at 18:50

Wednesday, May 13, 2009 at 18:50
Bloody Hell Willem!!, There the figues i'm getting out of the V8 petrol cruiser towing a couple tonne.!!. Me thinks its pump and injector time for you...lol.

Cheers Axle.
FollowupID: 632339

Follow Up By: Willem - Wednesday, May 13, 2009 at 19:01

Wednesday, May 13, 2009 at 19:01
Ummmmmm...I had the trailer in tow...did I mention that? lol

Have decided that I will consider a pump etc overall when the GQ gets to 400,000km which should be around the end of this year.

FollowupID: 632341

Reply By: Member - joc45 (WA) - Wednesday, May 13, 2009 at 11:49

Wednesday, May 13, 2009 at 11:49
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.
AnswerID: 364641

Reply By: Member - Royce- Wednesday, May 13, 2009 at 14:28

Wednesday, May 13, 2009 at 14:28
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.
AnswerID: 364655

Reply By: cobber - Wednesday, May 13, 2009 at 17:55

Wednesday, May 13, 2009 at 17:55
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!!!
AnswerID: 364687

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