What fuel do you use?

[JT]

Hi I have a R33 gts t and use Optimax. What fuel does everyone else use? In the drag forum I noticed that BP Ultimate is popular. Any reason?

Johnathon

[GTRgeoff]

Since BP Ultimate is not anywhere convenient for me, I use Mobil 8000. when I was running at the limit with a stock intercooler I found I needed to turn boost down on Optimax or pinging would occur.

Don't have an opinion on BP yet.

[rsx84]

i use the BP ultimate as i live 100m for a BP, it states 98ron when it goes into the stations tanks, it is the most expensive of all the pump fuels though!! anyone know what octaine the other brands offer??

[dacow]

as far as I am aware Shell Optimax is 98 RON too.. it's kinda weird because most of the Integra Type-R people are optimax peeps, it seems alot of peeps here are ultimate?

[PRO_32]

This could all be urban myth but a little while ago I heard someone say that 98RON is going to be wound back to 96RON and even 95RON so i started asking everytime i'd put fuel in at Shell or BP or Mobil id ask at the counter what octane it was and for all the fuels i was told it's 96RON apparently the CALTEX refinery where it all comes from they stopped running 98RON

btw This is in sydney im talking about could be diff in other states.

[CGB_R32]

Is there a supplement that u can add to increase the RON rating?

[rsx84]

is octaine and ron the samething? if so then there are a few additives u gan use ranging from 2-6 octaine increases of the shelf products then theres your non shelf fuels with the 100+ octanie

[JT]

This could all be urban myth but a little while ago I heard someone say that 98RON is going to be wound back to 96RON and even 95RON so i started asking everytime i'd put fuel in at Shell or BP or Mobil id ask at the counter what octane it was and for all the fuels i was told it's 96RON apparently the CALTEX refinery where it all comes from they stopped running 98RON  

btw This is in sydney im talking about could be diff in other states.

BP ultimate and Optimax are 98 RON whereas other normal premium is 96 RON. About to check out MOBIL. So don't use Caltex Premium 96 ron which I have done once in the past.

[Terminal]

I started using Ultimate, and it seems to work better for me, i get a little further on a tank now. i was on Optimax and now only use it whenever i can't find Ultimate.

[sky^rkt]

i used to use united premium for a while, it is pretty good but i highly doubt its 98ron, ive started to get on the optimax bandwagon now, it seems ot run alot beta

[PRO_32]

BP ultimate and Optimax are 98 RON whereas other normal premium is 96 RON. About to check out MOBIL. So don't use Caltex Premium 96 ron which I have done once in the past.

I was talking about the ultimate and optimax not the regulare premium stuff.

From what i've heard they havew gone down/.

[Jimbo2000]

strictly ultimate

[SKYLINED]

Caltex only have 96RON because they believe it has much better cleaning properties than 98RON

[mindflux]

I dont liek runnign Ultimate in my RB20det.. it just doesnt feel as good as optimax..

i currently have a tank of ultimate in my car now, and i think its pinging .. not too sure, :S

[Yotis]

Hrmm.. have been told to stick with ultimate, reason includes optimax has been known to cause issues like pinging.. and that ultimate seems to be better for turbos and produce more consistence engine running output... and that is what I have only used since I had the car..

Tho a old but knowledgable dude at work (which drives a porshe 928) told me tat is bs and that all the brands buy fuel from each other.

So I duno wat to think.. tho I'm tempted to run a full tank of optimax to see what effect I will get.. Only after my next major service/tune.. another 2000k away.

[PRO_32]

well i know bp doesnt have a refinery in sydney. Apparently BP get's it's fuel from caltex

[Trust33]

All high octanes i recon bp or caltex has the best followed by shell and if im desper8 and theres nothing else and im runninn on empty then its down to the premium. :wavey:

someone should start a poll of fuels we use....

[PTR33]

I was using BP Ultimate but now run Optimax mainly due to the 4cent/litre coles discount and I pass a servo on the way to work that always has about the best price around (even before the 4cents off).

Couldn't really say that I notice any difference between the two fuels through the "seat of the pants" dyno.

The BP seems to run a bit cleaner. But that is just judging from the smell of the exhaust.

[Trust33]

how do you start polls up on here?

[blackdoggette]

Starting using Optimax but now only use Ultimate cos I read somewhere, not sure whether it was this forum or another one, that Optimax is only 95, and they put some sort of additives in it to bring it up to 98...

Knowing my luck it is probably an urban myth, but must admit I get better mileage and performance outta the Ultimate....

BTW - lots of people here in Canberra call Optimax 'Crappymax'

:-)