Using different grades of fuel

[kunalraiker]

The only reason I'am so suspecious is because everyone here swears by the name of BP Ultimate,and I frankly didn't find much change in my mileage or performance.

 

[Bravotwozero]

The only reason I'am so suspecious is because everyone here swears by the name of BP Ultimate,and I frankly didn't find much change in my mileage or performance.

And you won't. You have a standard V6 tuned to run on 91 so you're not going to see any benefits from running higher octane. Most claims are simply marketing rubbish. And I don't buy into the hole V-Power is better than Ultimate or vice versa. I've used them all over the past 4 years and there is no discernible difference between any of them.

 

[RiCeY]

I disagree, I run ultimate every tank and on several occasions Ive needed fuel and havent been near a BP and have used Caltex 98ron and every time the car has pinged its ass off.

 

[TinSnips]

Mine idles rough as lumpy milk on Shell Vpower - starts hard too. I always stick with BP Ultimate. Not sure I get any more miles or power from it - don't really care either, just runs cleaner.

 

[greenacc]

Does anyone know if the price difference between E10 and 95-98 is going to change when 91 disappears ? I reckon the premiums are both overpriced , as i doubt they cost much more to produce, if anything.

 

[oscarmanalpha]

I use BP ultimate in my car. Also used it in the Honda I had before.

The lower grade fuels have a slower throttle response, and that just makes me put my foot down more, so in the end theirs no economy in the cheaper fuels for me.

Cheers

 

[Jarp]

Just on this fuels thing I've noticed the last couple of weeks that the car is a bit sulfurish smelling on the Mobil 92ron. I usually alternate between the 92 and 98. Car runs rougher on the 92 but I like the sound of it down low on the 92 and tend to flog it less as I keep it lower in the rev range. Much smoother on the 98but I give it a harder time 'cos it accelerates quicker...it's a viscious circle. Getting back to my prob was wondering if the smell is more likely to be a fuel issue or a catalytic converter issue? Or a tune issue?

 

[Mike08]

I have had good results with BP Ultimate, the only prob for me is the 200km round trip to get it. :bang:

Sorry just looked up and saw how old this thread was.

Cheers.

 

[Haluigi]

Tis rather old ey mike haha

I use shell v power because that's on my way to work. I notice it tends to jump around when slowing down in second til stopping. Wondering if it could be te fuel? I had it tuned with a tank of Bp ultimate in it so I'm wondering....

 

[tommySV6Ute]

Seeing this is ressurected, anyone notices their exhaust tips (inner surfaces) changing colour?

With a lean carby tune you would get white deposits, my pop always said this was a sign of a good tune, obviously a very lean one. Can the mixture of an injected motor (SIDI in my case) be altered by the owner or is it a computer tune related adjustment?

Or with the current gen of engine, is it one of these different octane fuels/ethanol causing the white exhaust which I saw on a light blue VZ the other day.??