What fuel?

B

Breaker

Elite
Did a quick search but couldn't find anything.

What fuel do you guys use in your Z's?

I always used Shell V-Power in my JCW MINI, and intend to use the same in my 3.0 si. BP Ultimate seems good also, but the Shell garage I use is cheaper! :)
 
Normally use Shell V-Power myself. I would use the BP one, as it has the better increase of bhp (provided you have a decent amount of horsepower to begin with).

No BP garages by me sadly :(
 
whatever is cheaper, which tends to be Shell where I am. Not too fussed about using the V-Power as I notice little difference.
 
I think that may strategy will be to use whatever is cheapest and then to fill it with some high end stuff every so often to flush the tank through.
 
mambot said:
I think that may strategy will be to use whatever is cheapest and then to fill it with some high end stuff every so often to flush the tank through.
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The only "Premium" fuel I have anywhere near me in Northern Ireland is BP Ultimate and on a friends advice, ran the tank down to fumes and filled up on Ultimate.

Noticed an immediate difference in the mid-range and responsiveness in my 2.0i Sport and it seems to run smoother too..... worth the extra few pennies I think! :D
 
93 octane! preferably from chevron... if not.. then shell... then mobil... then maybe bp. no exceptions after that!
 
I filled up the other day after the tank was bone dry, with shell V max, jesus, what a difference ! the car even sounded sweeter (that could have been my imagination though) However it was expensive at £1.12 per litre !, worth it though.
 
I'm not sure I hold with this idea that a couple have mentioned of running to 'fumes' or 'bone dry'. It's not uncommon for there to be a layer of water on the bottom of the tank, not to mention the general build up of sludge and silt from fuel and of course in older tanks corrosion.

Any of this will if lucky just clog a filter, but would have dire consequences going through injectors.

Just a thought for the day
 
cj10jeeper said:
I'm not sure I hold with this idea that a couple have mentioned of running to 'fumes' or 'bone dry'. It's not uncommon for there to be a layer of water on the bottom of the tank, not to mention the general build up of sludge and silt from fuel and of course in older tanks corrosion.

Any of this will if lucky just clog a filter, but would have dire consequences going through injectors.

Just a thought for the day
Click to expand...

The fuel filter is in the fuel tank. You cannot get to it to clean it. You must drop the tank...
 
Shipkiller said:
cj10jeeper said:
I'm not sure I hold with this idea that a couple have mentioned of running to 'fumes' or 'bone dry'. It's not uncommon for there to be a layer of water on the bottom of the tank, not to mention the general build up of sludge and silt from fuel and of course in older tanks corrosion.

Any of this will if lucky just clog a filter, but would have dire consequences going through injectors.

Just a thought for the day
Click to expand...

The fuel filter is in the fuel tank. You cannot get to it to clean it. You must drop the tank...
Click to expand...

Then that just makes it all the more important. On my Jeeps I run external filters and change ever few events. With the shaking it's amazing that they go brown/red and clog in a few events and that's on min 1/3 tank
 
Is there a particular reason why the feeder pipe / filter is not at the lowest point in the tank so that you would never have a place for sludge to be?

Also, if you run on say .25 of a tank, wouldn't the petrol get shaken so much in the tank that it completely mixes anything that is in the tank?
 
enfield said:
Shell V-Power because it is the only brand without alcohol in it (here in Canada).
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+1 when it needs it in the summer....
otherwise PetroCan is expensed through work .... :D so guess what I use.
 
pvr said:
Is there a particular reason why the feeder pipe / filter is not at the lowest point in the tank so that you would never have a place for sludge to be?

Also, if you run on say .25 of a tank, wouldn't the petrol get shaken so much in the tank that it completely mixes anything that is in the tank?
Click to expand...

pvr I guess we need a specialist in fluid dynamics to explain why silt can lie on the bottom of the tank unmoved while driving. Sand manages it pretty well under waves.

Water certainly condenses in the tank and settles to the bottom and you'd not want that so I assume the logic is to pick up away from the bottom.
 
Justinitus said:
mambot said:
I think that may strategy will be to use whatever is cheapest and then to fill it with some high end stuff every so often to flush the tank through.
Click to expand...

The only "Premium" fuel I have anywhere near me in Northern Ireland is BP Ultimate and on a friends advice, ran the tank down to fumes and filled up on Ultimate.

Noticed an immediate difference in the mid-range and responsiveness in my 2.0i Sport and it seems to run smoother too..... worth the extra few pennies I think! :D
Click to expand...


Just for information sakes, I got a check engine light and was told by the local BMW dealer mechanic that the tank got way to low, air was sucked into the injectors. He advised to fill up before I ever see the yellow low fuel light. Just something to consider when running on empty. :driving:
 
Tesco 99's the one for me. Thorney Motorsport did a report on the usual high octane brands her in the UK and Tesco 99 produced the best power figures. Don't forgt that when you change fuels it can take up to three tankfulls before the adaptive ECU fully adjusts to it so don't be surprised if you don't feel instant gains.
 
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