GT-R Register Bulletin Board

13th October 2003, 07:08 PM	#331
Mycroft Utter, utter ba$tard Join Date: Apr 2002 Location: In a pretty little things bedroom... with my trousers down... Posts: 2,550 Car Owned: Sinclair V10 and W12...	Shell Optimax. RON 98.3 [tested independently] MON 89.2 [tested independently] Using the 'old formula' one would expect 98.3 RON to be around 90.5 MON, so if you do the sum 'backwards' for 89.2 MON the figure of 97 RON is achieved. BP Ultimate. RON 97.2 [tested independently] MON 90.3 [tested independently] Using the 'old formula' one would expect 97.2 RON to be around 89.4 MON, so if you do the sum 'backwards' for 90.3 MON the figure of 99 RON is achieved. The divergence you see in the above is set to worsen over the next few years as others try to get in on the act. [Copyright Dr. Iain Wiltshire, 13/10/2003 Not to be copied/transcribed without permission of Author] __________________ I post, the dreadful people whine, I tell them what's what, they get upset, I remind them they are worthless, the peasents revolt, I put the boot in, they cry 'Foul'... I get banned... it really is as simple as that old boy.

13th October 2003, 07:57 PM	#332
AndyF_RSX Regular User Join Date: Nov 2002 Location: North West Posts: 40 Car Owned: Evo 6 RSX with a few mods :-)	Iain, Where did you get those MON figures from because when I asked BP about the MON rating for 'Ultimate' they told me it was 97RON and 86MON so I'm interested as to where you got your figures. Cheers Andy

13th October 2003, 08:13 PM	#333
Howsie GTROC member 007 Join Date: Feb 2002 Posts: 2,823 Car Owned: R34, 330d Sports	Interesting. Cheers Iain!

13th October 2003, 08:26 PM	#334
Mycroft Utter, utter ba$tard Join Date: Apr 2002 Location: In a pretty little things bedroom... with my trousers down... Posts: 2,550 Car Owned: Sinclair V10 and W12...	Test results from the refinery! I think that they sent may have been a typing error, they should have sent [so as to not confuse the masses] 89 MON which on the original formula equals 97 RON... it should say something like '... at least 89 MON' that is what I received from them! __________________ I post, the dreadful people whine, I tell them what's what, they get upset, I remind them they are worthless, the peasents revolt, I put the boot in, they cry 'Foul'... I get banned... it really is as simple as that old boy.

14th October 2003, 06:54 AM	#335
chunky New User Join Date: Oct 2003 Location: Scotland Posts: 2 Car Owned:	So am I right in thinking that had either of these fuels been marketed in the US they would be sold with a 94 octane sticker on the pump? Or more specifically 93.75 octane?

14th October 2003, 07:32 AM

#336

Big Mark

Escape from the new world

Join Date: Nov 2002

Location: South Hants & Gothenburg

Posts: 1,036

Car Owned: R33 V-Spec, R31 GTS Autech, Chevy Camaro

Quote:

So am I right in thinking that had either of these fuels been marketed in the US they would be sold with a 94 octane sticker on the pump? Or more specifically 93.75 octane?

That would seem to be the case..... (RON+MON)/2.

__________________
Cheers,
Mark

14th October 2003, 08:28 AM	#337
AndyF_RSX Regular User Join Date: Nov 2002 Location: North West Posts: 40 Car Owned: Evo 6 RSX with a few mods :-)	Iain, Looking at the BP australia website it gives the following RON and MON's Regular Unleaded 91 and 82 Premium Unleaded 95 and 82 BP Ultimate 98 and 85 I can only assume that this 'BP Ultimate' is different to the one that we are getting. Is that correct? Andy

14th October 2003, 10:04 AM	#338
AJFleming プロジェクト78 Join Date: Feb 2003 Location: Poole, Dorset, UK Posts: 2,016 Car Owned: プロジェクト78	Why all this nonsense petrol? Why on earth dont we get the same fuel as Japan?!?!? __________________ http://www.stertegarage.com/ Performance modified Japanese car sales.

14th October 2003, 10:26 AM	#339
Gez ..... Join Date: Jan 2003 Location: Sydney/London Posts: 1,082 Car Owned: EX-R34 GTR & S2000 owner. Now drive a MINI Cooper.	TAX is one word Best crude is British but unfortunatley we dont get it (surprise surprise). We just get the cheap crap on the market so the gornement and Petro-chem companies make silly amounts of profit. Many thanks Gerry

14th October 2003, 11:55 AM	#340
AndyF_RSX Regular User Join Date: Nov 2002 Location: North West Posts: 40 Car Owned: Evo 6 RSX with a few mods :-)	Just to add a bit more info I've received.... All SUL in the UK has to have a minimum MON of 86 and this is what BP are claiming for 'Ultimate' Shell also claim a minimum MON of 86 for Optimax however I've had a response from Shell saying that a MON figure of around 87.5 is a 'realistic' value of the MON rating. Any comments Iain? Andy

27th March 2004, 09:24 AM	#341
Mycroft Utter, utter ba$tard Join Date: Apr 2002 Location: In a pretty little things bedroom... with my trousers down... Posts: 2,550 Car Owned: Sinclair V10 and W12...	Read this... http://www.asa.org.uk/adjudications/show_adjudication.asp?adjudication_id=37402&from_index=show_advertisers&dates_of_adjudications_id=all The truth will 'out' eventually. __________________ I post, the dreadful people whine, I tell them what's what, they get upset, I remind them they are worthless, the peasents revolt, I put the boot in, they cry 'Foul'... I get banned... it really is as simple as that old boy.

27th March 2004, 10:08 AM	#342
JasonO Moderator Join Date: Jun 2001 Location: Ayrshire, Scotland Posts: 4,728 Car Owned: R33GTS25T	Mmmm, Intresting __________________ JasonO GTR Forum Moderator

28th March 2004, 05:15 PM	#343
dan0h Mapper... Join Date: Jul 2002 Location: The dyno cell... Posts: 1,519 Car Owned: HNR32	Didnt doubt you for a minute Mycroft ... I dont rate Optimax either, and we certainly dont map on it at Abbey's... __________________ planet dan0h Dynapack Operator and Engine mapper @ Abbey's ... Responsible for Tim's BNR34 Nur, tokyodrew's BNR34, Rocket Ronnie's 3xTOTB Winning BCNR33, Harry's BCNR33, Big Marks BCNR33, Jae's BCNR33, Zenon's (Nemesis) BCNR33, Ron Kidell's (RK Tuning) BNR32, m6beg's BNR32 & m6beg's missus's GDB Subaru!, Daz's BNR32, Knight's BNR32, GBH Motorsport JZA80 ... And quite a lot of other cars people don't know about...

28th March 2004, 05:22 PM	#344
Daz GTROC Member Join Date: Aug 2001 Location: Daaaan Saaaaf Posts: 2,795 Car Owned: R32 GTR	So you want me to fill-up on BP Ultimate before I bring my car up next weekend then Dan ? __________________ Daz http://www.myselector.freeserve.co.uk/ Regional Rep - South East Dynapack tuned ... by Abbey Motorsport

28th March 2004, 08:43 PM	#345
IanH A LARGE Member Join Date: Nov 2002 Location: Lincoln Posts: 662 Car Owned: R34 GTT and the "Diesel of Doom"	Ran mine on Optimax for almost a year with no problems (at 1.2bar for 3 months) or knock, had to use BP Ultimate once and was forced to turn the boost to 0.8 to avoid knock. Engine really didn't like it! __________________ UK's 1st RB26 R34GTT Conversion - I think http://www.r34gtt.net/ - Updated Monthly !!! PowerFC, Z32 AFM's, Tomei Cams & Pulleys, 550cc Injectors and Apexi Filters..................Woah Yeah!