Hmmm, might try 95RON for a while and see if I can tell the difference.

If I can't I suppose it will save me some dough.

 

I don't own the book, but I have borrowed it from the university library here a couple of times. The first time when I was a late teenager, and the second time when I was waiting delivery of the '8. I read it from cover to cover both times.

I think it is the same book we speak of: Blue cover with the picture of Wankle and his original "true-rotary" DKM sitting on his lap.

Cheers,
Hymee.

 

Ditto. Been on 95 RON for the last 3 months....no difference at all.

 

vorsux def. is the worst fuel i have ever put in..... twice just to prove that the first time is crap
have tried
mobile synergy 6000 and 8000, no diff
bp ultimate and 95rom PULP, no diff
shell optimx

so now i just use either bp 95ron or mobile synergy 6000 (both around the corner of my place) , no chicky babe serving though....

 

I think we should have a thread "chicky babe in servo" for EZZY

 

Just to add to this, I actually filled up with 95RON from Woolworths/Caltex yesterday, so whether they get it from a different source or still had some left I don't know.

**Edit. Also, just FYI if you do use Vortex, Caltex have a competition on their website for free fuel so keep your docket and enter. You can use your docket from Caltex/Woolies servos as well as just Caltex.

 

yes please... that'd be great

i think it was more painful going through a tank of vorsux than enjoying the benefit of those discounts...... from experiences (yep, twice)

 

I've run 91, 95, 98 and BP E10 (10% ethanol) in my RX8 and during normal driving I did not notice any difference in performance or economy.

On E10 the car is a little harder to start, and idles a little rough.

On a race track or at high revs perhaps there would be a difference, but from now on I'm running 91 to try and get my fuel bill down.

Deano

 

It is getting too long. BP is out in most part of VIC

http://www.bp.com.au/sms/

 

Save your money Taka - I'm running 91 at the moment and to be honest the ****-o-metre can't tell any difference.

Cheers,

Deano.

 

A few people have noticed 'pinging' when using 91RON -- but it's undoubtedly safe to use if there's nothing else

 

Denotation Kalli

When you can feel the denotation - it is too big.

Most people cannot detect small denotation while on the lower octane fuel. It is even less when the ECU trying to adjust it. That is why there is a device with a headphone that the tuner use when they tune the ECU.

I will not take that risk. But it is your car and your warranty.

 

Does anyone know the octane rating of BP E10? 10% Ethanol blend, Mazda say that is safe to run. I'm pretty sure you'll find its 91RON.

 

Well Shell puts 5% Ethanol into Craptimax to make Craptimax Extreme, and it is 100 RON, according to their marketing.

Cheers,
Hymee.

 

Well the car is manufactured as suitable for 95 RON and above. So the ECU WILL be tuned to the fuel to get NO damage (pinging) whatsoever. Depends how conservative the tuning is... you MAY not get problem with 91 RON.

You see what I mean.

In terms of "performance" between 95 and 98. It is highly debatable and highly subjective. Unless there is people who willing to do chassis dyno back to back like the 5th gear recently shown.

 

What are you trying to say here :?????????

RON is one thing and E10 is another matter all together??????

At the back of the fuel cap - does it say Unleaded 95RON or above ONLY ???? :

 

My argument would be that 91RON ULP would be better for the vehicle than 91RON E10 - and if 91RON E10 is okay, then ULP should definitely be okay.

Your thoughts?

 

Hmmm I seems to grab your argument... Yes I think Mazda said E10 is suitable but not recommended. Anyhow, you can use E10.

So E10 = okish... (we agree)

but... Not all E10s have 91 RON and not all 91 RONs have E10. Confusing??? what I am saying is Mazda said E10 is suitable but did not imply that 91 RON is ok according to your argument.... you see??

But 91RON + E10 = not ok; Since 91 RON is not ok....

You may say that the only E10 available is 91RON in Australia. IT MAY BE TRUE. But mazda did not say that (and not implying that). Mazda just doing a general statment. I would doubt the lady in the customer relation know which petrol company has E10 and which does not.

 

Did some quick research E10 has 93-94 RON - I can tell you the car runs fine on E10 but it was harder to start (that was with the old starter anyway, havn't tried it for a while).

Here is the info:

http://www.bp.com.au/products/fuels/...oduct_info.pdf

 

The Ethanol being added to the ULP should increase the RON of the petrol by a couple of points. Ethanol has a higher resistance to knock = Higher Knock Rating = Higher RON.

Would be nice to know.

Cheers,
Hymee.

 

http://www.caltex.com.au/about_news_...?id=309#octane

 

Once again I posted this

Mazda stand points on E10.
http://www.mazda.com.au/articleZone1...cleZoneID=2568

Mazda letter reponse to the Optimax Extreme 100 RON E5
https://www.rx8club.com/showpost.php...01&postcount=1