tried to fill up today at 3 stations all out of 98 ron and may be 3 week before we have fuel. BP said they are tying bring some in from Singapore.

 

Hmm...well...95 is fine ...and 91 will work, too

 

Yeah, no big deal.

The only difference your going to get on PULP or 98 is found in the wallet.

Read up on it, Rotaries combust differently so are not susceptible to RON as pistons are.

Any "atmo" rotary is 100% safe on regular ULP

REgards

 

http://www.abc.net.au/news/newsitems...1/s1505215.htm

 

Yes well I'll have to go and top up now that I have half a tank of 95 RON and mix it with 91 RON

Interestingly, does this mean that all the 95RON we buy comes from the same place, regardless of who is selling it? Surely reads that way.

 

Does that mean BP shuts down there is no Optimax? Hence Optimax comes from BP??????

 

Optimax and Unleaded 95 is not available from Shell in WA, only Premium Unleaded - I just checked their site... (see http://www.shell.com/static/au-en/do...r/wa_sep05.pdf)

Looks like BP owns WA... At least at the high end of the petrol market..

 

??????? Hon Don ga???

How about Mobile Synergy 8000 and Caltex Voltex 98?

I think we should help the mates in WA, is there a way to courier fuel interstate???

 

Sorry mate.. have to disagree on that one. Hymee got some detonation on his car (when it was NA) with the latest flash and standard unleaded.

Standard unleaded should be OK but take it easy.

 

The BP near my place was out of 95 and 98 RON this morning. This may be a nationwide thing.

 

Anyone tried the 98 octane ethanol blended stuff
I have heard it burns hotter , due to it (ethanol) not being derived from oil.
What implications does that mean to the 8
Yes / No ?

 

Damn.

Sure wish I had a scanner to show you guys the technical studies published by Curtiss Wright on ATMO powered rotaries.

Hymee, perhaps you suffered crap fuel rather than low-RON fuel.

I've run & continue to run low boost rotary powered cars on 91-ron. Atmo version never get the extra money wasted on them....

 

I can't remember where he said he got that fuel.. hopefully he'll chime in.

Got a digital camera.. that might work???

 

Actually, there have been a couple of reports of detonation using 91 RON in the 8....equally, plenty of people swear by it.

 

Must say I use 98RON out of habit - it really improved the performance of some previous, lesser, cars that I've owned. So I just kept going to the same bowser at my local when I got the 8.

Have also used 95RON when 98RON wasn't available but don't think I'd bother using regular unleaded. Combustion aside, there are other benefits of premium fuel aren't there?? Hmm, maybe I've just been sucked in by the marketing hype.

Does anyone happen to know what a certain low flying 91RON bandit is now using???

 

I tested this theory a little while back. I experienced exactly what Hymee did. I had been a regular PULP buyer and then tried regular. I felt like I got bettre fuel repsonse and better fuel economy, then on my third and forth fill up I got what sounded like a rattle under hard acceleration and driving. Thought it was a lose component and it turned out to be the rotory equivalent of pinging. Swicthed back to 95 and have never seen the problem again.

 

Yes, I have read the stuff about Curtiss Wright in a big rotary history textbook. Great read BTW. Lots of interesting results from lots of studies. I guess the most obvious difference betweem those studies and now, is that the Renesis is higher compression.

91RON Bandit is now the 98RON Bandit

We also tried the old "TSI" on Wildcards car ages ago, and we did get some pinging, but we put that down to the TSI having a tune-up in it for a different flash that what Wildards car had in at the time. Since the tuning of the TSI was based around adding or subtracting fuel from the stock computers output, the TSI tuneup was very much tied to the flash that was in the car. Wildcard had a different flash than what was used to tune the TSI.

But normally, Wildcard did have many km of trouble-free 91 RON motoring.

I had to go and get 450 litres of Optimax for the race cars last Tuesday night, cause we were packing the semi. BTW - The semi has 4 RX-7 N/A circuit cars on board, and yes, the fuel was for them. Anyway, the first big shell we went to had no 98, and the next one had a few 98 bowsers closed. Hmmmm.... Wonder if this is all related?? Probably just cooincidence.

BTW - Currently I'm running on "normal" 95 PULP. I used to go 98 almost exclusively.

Cheers,
Hymee.

 

Since we've now had people from WA, Vic and Qld remark upon the unavailability of 98RON it must be a bloody big coincidence.

Any cockroaches having a hard time getting 98RON. I haven't had to fill up for a week or so.

 

I had a chat of the checkout chick at the BP servo at Pakees today. It is a generally short of BP Ultimate although they have some 95 left but they will run out since they are not been able to order more.

She said there is a ship coming - which confirm the story.

She said the Mobil and Caltex in Melbourne are ordering from the same wholesaler... if that is true then Optimax maybe in trouble too.

So I went home and get my 8 to the nearest Shell. But they have Optimax just.

I was confirmed that the refinery for Optimax in Vic are locally made somewhere in the west - Geelong or nearby. The manager in fact, just order some for Friday at a lower price than before - hinted that there will be a price drop when they filled that tank up for the weekend.

They said they (as in across the board) normally list the Optimax 10c more than the ULP, but even so it is flexible.

He did say, "see ya Friday".

 

bugger... forgot to top up the 8....

how come we never get chicky babes at the BP servo nearby........

 

because they know you're coming

 

So I take it you have the same book.

Jan.B.Norbye "The Wankel engine" from the early 70's.........??

If so, can you scan the Curtiss Wright pages on their octane testing please. They show the RC2-60 engine going from low grade to high fuel & the lack of power gain/loss achieved. Am sure the other guys would love to have a read.

I just took a digi pic & got this over exposed flash off the white paper....... "grrrr"

As for the guys that swear by the higher RON. Each to their own I say........

Freedom of choice is more important than what I am saying here......

REgards

 

Dave, Hymee makes a point about the Renesis being higher compression, and (his included) there have been some reports of the Renesis 'pinging' on 91 octane.

I've basically settled on 95 RON as I can't tell any difference between it and 98

 

Well said Timbo.

I could not tell either, except my engine is smoother after finishing a tank of Vortex premium and back to a tank of Craptimax.

I agree that the rotary will run ok in 91... if you are in daily use. I doubt anyone will track their car in 91 Octane.

Stu and I are having a track day next Tuesday... hopefully they will still have Craptimax ...

Craptimax is made here in Victoria.

 

Well... I think that Craptimax is MUCH better than Vorsux...

Just ask Hymee how he feels about Vorsux...

You can just feel the extra 50Kw at idle..