Jump to content
SAU Community

Recommended Posts

As far as I know, its a fact that BP Ultimate (who use the best Western Shelf Crude Oil) refine their fuel to 98 octane, where optimax is like putting a bottle of octane booster in your tank.

I have it on good authority.

I don't use the crap.

BASS OUT

So Bass, what do you get when you buy Ultimate in Sydney, where there is no BP refinery? What about Melbourne, where there is also no BP refinery? Ask your "good authority" where Western Shelf Crude is actually refined?

  • Replies 82
  • Created
  • Last Reply

Top Posters In This Topic

Shell doesnt even sell Optimax in perth as a 98 octane fuel, We only get Ultimate and Vortex (which For our engines doesnt have high enough ron).

I would guess that is because it isn't worthwhile for Shell to ship Optimax accross the desert. They would have to charge more than BP, with their local refinery.

Vortex (which For our engines doesnt have high enough ron).

bs my car runs quite happily on Vortex and notice barely any difference between it and the 98RON stuff. Maybe if I was taking it on the track or drag strip, but for the road its fine.

I run Optimax without problem.

TonyGTst has told me he's had no issue with using Vortex.

I have a fuel card for my job "free fuel, go me!!!" and the only premium I can buy is Vortex. I didn't have any problems with running it. Maybe people with more delicately tunned cars would notice a difference cause mine was pretty stock. I tried Optimax once and would never do it again. :)

I went through a complete fuel test using BP98, Vortex, Opimax, Mobil synergy98 in one day while trying to keep constant temps.

knock levels were as follows Higher being worse and 75+ being an audible ping.

BP98 :27

Mobil synergy :37

Optimax :69

Vortex :80

BP98 +30% toluene :30 (plus 7 degrees advance) =)

Tests were done in SA. I have run both BP98 and Optimax in Sydney and found BP98 to be better, however as Sydneykid and others have stated the shell refinery uses old technology and batches differ. I would never use any other fuel in SA accept BP98 as I always got exactely the same knock level. Here in Sydney my levels are always different...again backing the fact BP uses optimax. I have given up and now have a cheap supplier for toluene. I am yet to find a fuel here I can tune to and trust.

Damn. Good thing I don't put Vortex in a Skyline anymore. What’s the deal with Av-Gas. I have absolutely no idea what would happen if you put it in a car. Does anyone know??

AvGas has lots of lead in it, so filling up the cat and coating the lambda sensor.

I used Wynns pro strengh for ages until my plugs were coated to the max with brown red sot. Have heard reports that they clog injectors..... Have used Nulon as of late and the plugs seem to be cleaner. Nothing close to toluene tho. I have been using tolunene at the same cost for a bottle of booster for a while now. (Hint: It's used in printers and costs a fraction of the price $2.20 at litre) =) nice

I used Wynns pro strengh for ages until my plugs were coated to the max with brown red sot. Have heard reports that they clog injectors..... Have used Nulon as of late and the plugs seem to be cleaner. Nothing close to toluene tho. I have been using tolunene at the same cost for a bottle of booster for a while now. (Hint: It's used in printers and costs a fraction of the price $2.20 at litre) =) nice

Now that is interesting. I also noticed when I changed my plugs they had the brown red soot on them It must have been from the Wynns as you said cause I tried it for a while and didn't really notice any difference.

By the way what colour is Toluene? Blue Cyan or Magenta? Hehehe. :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Kinda glad I never got to this ..    https://www.facebook.com/groups/1483859159195077
    • @GTSBoy This method was able to get readings of -10 to -2, so it looks like its monitoring.  Now I need to figure out why the vacuum on the line provided isn't alternating with manifold pressure.  I went with 2 lines that an RB25 tuner recommended but I'll get a longer hose and try directly off the back of the manifold.  He may have been used to OEM intake setups while I have a DBW setup that removed the MAF and IACV.  
    • I work at a car detailing and tinting shop called Quark which gets all manner of German cars in usually (mainly due to a contract with Mercedes Benz Kita Osaka, BMW Nishinomiya and others) but every once in a while something special comes in, like a fully restored 1972 HS30 Nissan Fairlady 240ZG... The shop owner had immediately started applying film to the windows as soon as it was in the shop so the interior was completely covered in towels and plastic sheets. But I could get a few photos of the engine bay which was restored like new. Such an amazing car to see in pristine condition in Japan these days.  
    • Was going to say the car pulls up nicely everywhere, especially going into that last long right hander before the main straight. Looks like a lot of fun.
    • Hey Dave, welcome aboard! Good to see another soon-to-be Stagea owner here. The wagons are awesome — plenty of space, still got that Skyline DNA, and loads of potential if you’re into mods. Definitely post up pics when you get it, everyone here loves seeing new builds. What model/year are you looking at?
×
×
  • Create New...