Bp Doing The Dodgey

[autoworx]

my last car was tuned and ran on peak 98 exclusively , 330rwhp rb25 running up to 1.4bar no detonation issues ran great

i honestly dont think it makes a heap of difference between brands , peak is just closest and best servo around here

[TAKUSHI]

haha good ol peak, best after hrs servo round

[hoony]

while we're on the topic of BP vs Caltex...

since it came out here, i've only used Caltex's Vortex98 unless i'm on empty and BP is closer...

i've noticed that my car sounds nicer, feels smoother and makes cooler sounds lol

oh yeah, and i don't believe the 'BP Ultimate gets you more fuel', it's f*ll of shit... i tested two full tanks doing the same route in two weeks, one on BP and one on Caltex and Caltex got me a few kilometers more (in the two digits)

[R33_NICK]

surprisingly before i switch to BP Ultimate when i was still using Shell Premium, full tank of Premium got me more km than a full tank of Ultimate. might consider trying Caltex 98

while we're on the topic of BP vs Caltex...

since it came out here, i've only used Caltex's Vortex98 unless i'm on empty and BP is closer...

i've noticed that my car sounds nicer, feels smoother and makes cooler sounds lol

oh yeah, and i don't believe the 'BP Ultimate gets you more fuel', it's f*ll of shit... i tested two full tanks doing the same route in two weeks, one on BP and one on Caltex and Caltex got me a few kilometers more (in the two digits)

[hoony]

^ in saying that Nick... i read in some performance magazine... Shell 98 in the eastern states was the best 98 fuel they tested out of all companies that had 98 fuel...

they need to bring it here, i'm sure Ferrari R1 uses Shell... it's on their website intro lol

[R33_NICK]

lol truu wasnt sure why they have it in the eastern states but not here

^ in saying that Nick... i read in some performance magazine... Shell 98 in the eastern states was the best 98 fuel they tested out of all companies that had 98 fuel...

they need to bring it here, i'm sure Ferrari R1 uses Shell... it's on their website intro lol

[big col]

Yeah BP woodvale had the out of order tags on all of the premium pumps tonight. Would be great if the government grew some balls and passed some laws to stop the fuel companies from doing obvious profiteering like this... rather then making a crappy fuelwatch website that tells you how you're getting screwed over at the pump. I'll probably try out vortex 98, I've had enough of BP shenanigans. Always the most expensive and as said the prices vary wildly even at BP stations 2 minutes apart!

[Douse]

Filled up at East Perth BP with U98 for 108.7 last night.

There were no out of order tags.

Edited December 17, 2008 by Douse

[MLCrisis]

Hi, all. There have been heaps of threads about comparing fuels, so please have a look at them to see more about it. Some facts that may help:

## The BP refinery at Kwinana is the only refinery in WA. So it supplies all fuel to all other retailers. There is a product sharing agreement between the oil companies. The way this works is that the local refinery in whichever part of Australia, where there is not another refinery for a large distance, will supply basic fuel to the other retailers. This saves each of them shipping loads of it across the Nullabor, etc. (The minor independents may buy cargos, i.e. ship-loads, of refined product on the spot market, but I doubt that makes up much, if any, of the market.)

## So BP Kwinana supplies fuel at 91/92 RON and 95 RON (or close to it) to the other retailers. They each add their own ingredients to "make it their own". Hence, Shell Premium (95 octane) that you buy here is pretty much the same as Shell Premium over East.

## BP Ultimate is the only 98 octane fuel in Australia that achieves its octane rating largely through refining. The other fuels, such as Shell Optimax and the Caltex stuff, achieve it by taking a 95 octane refined fuel and bunging in a load of additives (unless things have changed in the last year or so). So the "nice smell" you get from the Caltex stuff is indeed from all of the aromatics and the like.

## Shell Optimax is not available in WA, presumably because the cost of installing the kit to mix the additives and ship the additives is too great. But Caltex have done it .. ... .... ... !!

## There is considerable debate about whether the additives that achieve the octane increase are good, bad or indifferent for your tuned motor.

## If you are driving a Skyline, whether GTST or GTR, you should be very careful running it on 95 octane fuel. The cars are tuned from factory to run on 100 octane fuel in Japan. So if you are doing any hard driving, you will probably be getting some knocking and could get a catastrophic detonation, if you push it hard enough. If your car has been tuned on 95 octane, your tuner should be telling you to change to 98!

## BP are not the only stations that engage in the practice of marking their higher octane/premium pumps as "out of order" the day before they are putting prices up. My wife has experienced this with several Shell stations with their 95 octane premium.

When all is said and done, any 98 octane fuel is likely to be adequate for your car, if it has been tuned for 98 octane fuel. Any differences you might experience between brands are unlikely to be significant or scientifically based. You are as likely to see variations over several months with the same fuel as the crude mix changes or there are minor variations in additives.

Just to show I am subject to human frailties and bias like the rest of you - I only buy BP Ultimate. The one time I bought the Caltex stuff, the car appeared not to run as well and I got less from the tank. And my favourite toy when I was about 3 years old was a BP tanker by Matchbox!

For your homework, please write 2,000 words on the effect of distance on the operation of the petroleum industry in Australia.

Cheers.

Edited December 18, 2008 by MLCrisis

[Tezzah]

lol awesome post!

[bubba]

So, in conclusion: BP U98 FTW! lol

Edited December 18, 2008 by bubba

[djr81]

## If you are driving a Skyline, whether GTST or GTR, you should be very careful running it on 95 octane fuel. The cars are tuned from factory to run on 100 octane fuel in Japan. So if you are doing any hard driving, you will probably be getting some knocking and could get a catastrophic detonation, if you push it hard enough. If your car has been tuned on 95 octane, your tuner should be telling you to change to 98!

Good post. Just an aside.

The Australian delivered R32 Gt-R's were released at a time when you could not buy 98 octane fuel here. 95 was the best that was on offer. So Nissan felt happy enough running a Gt-R on 95 octane.

[Ehgriez]

But they were only released so they could run them in motorsport....

[djr81]

But they were only released so they could run them in motorsport....

No.

Nissan starting running the Gt-R's in group A racing here in Australia in 1990.

They starting selling GT-Rs in 1991.

If anything they relied on the success in motorsport to help sell the Gt-R's.

An endeavour which, as far as the Australian experience was concerned, was an abject failure.

But who had $100,000 to spend on such a car in 1991?

[MLCrisis]

The Australian delivered R32 Gt-R's were released at a time when you could not buy 98 octane fuel here. 95 was the best that was on offer. So Nissan felt happy enough running a Gt-R on 95 octane.

Yeah, if the engine is tuned for it, you can run it on 95 or even 92 octane. The power would be down though. It would probably not run well on 92 octane, because the tune would have to be so rich. The problem would come when someone is using a car with a set up from Japan and running that on 95 octane fuel. Knock would be a constant feature and detonation only a small amount of spirited driving away!

Cheers.

[br3ndan]

Yeah, if the engine is tuned for it, you can run it on 95 or even 92 octane. The power would be down though. It would probably not run well on 92 octane, because the tune would have to be so rich. The problem would come when someone is using a car with a set up from Japan and running that on 95 octane fuel. Knock would be a constant feature and detonation only a small amount of spirited driving away!

Cheers.

just a quick question Brendan 1.. u mentioned its tuned for 100 in japan but since we only got 98 here would we still get knock with spirited driving?? so should we b running octane boosters? since we are running 2 down from what its meant to be? or is 2 octane not that much of a difference ?

I always thought it was tuned for "super" in japan which is 97 octane.(i may be wrong )

Edited December 19, 2008 by br3ndan

[MLCrisis]

just a quick question Brendan 1.. u mentioned its tuned for 100 in japan but since we only got 98 here would we still get knock with spirited driving?? so should we b running octane boosters? since we are running 2 down from what its meant to be? or is 2 octane not that much of a difference ?

I always thought it was tuned for "super" in japan which is 97 octane.(i may be wrong )

Hey, Brendan. You may well have just discovered the limit of my knowledge of what goes on in Japan! My understanding was that the higher performance cars, like the GTRs, are tuned from factory for 100 octane fuel. Not sure about the GTSTs/GTTs. So you could well be right there. If a car has been set up for 100 octane, then you would be well advised to get it tuned for our 98. I believe, however, that the factory computers can compensate to some degree. I think you would find that for a car with a factory computer set for 100 octane, the manual would advise you that you could use 97/98 without too much problem, but advise against using 91/92. (I will have to check my manual!) Anything tuned with an aftermarket computer in Japan definitely needs re-tuning for 98 octane here.

So the straight answer to your question is that if it is tuned for 100 octane, it will knock if you drive on anything less. The lower octane fuel you use, the worse the knocking and the more likely you will get permanent damage. Remember that knocking is, in effect, mild detonation. (Not strictly true, but as near as dammit without getting a PhD!)

Maybe Rezz can help, if he is still around?

Cheers.

[seul_avec]

BP just love to jack up the price as they like ....

[R33_NICK]

BP innaloo brought it up 2 like 107 when others r still 1 or less

[Char]

999.2! where did u snap that?

so what i've learnt today: caltex, peak, shell etc take 95 octane fuels and use additives to achieve 98 octane, while BP uses 98 or closer to it..

i've considered using other than BP but yeah think i'd rather fork out the extra $5-$10