E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Asia > Hong Kong > Fuel Octane Discussion



Reply
 
Thread Tools Search this Thread
      02-10-2009, 08:50 AM   #1
Bimmer /E93
In The Flesh
Bimmer /E93's Avatar
Hong Kong
18
Rep
122
Posts

Drives: E93 (Sold), Z4 35i on board
Join Date: Nov 2008
Location: Hong Kong

iTrader: (0)

Fuel Octane Discussion

I am regular at Caltex, simply because they have a station cross my street...
I learned from them the last day, that all gas petrol in HK is 98 Octane
and I learned from BMWHK, that our cars would need a Minimum of 91...
Never mind... now, does anyone know what is the difference between The platinum techron fuel & the Gold Techron fuel at Caltex, and if it is worth filling up platinum?
Appreciate 0
      02-10-2009, 09:52 AM   #2
little_croco
Colonel
little_croco's Avatar
Hong Kong
141
Rep
2,957
Posts

Drives: E90 330i Monaco Blue/Beige
Join Date: Nov 2007
Location: Hong Kong

iTrader: (0)

Garage List
2006 E90 330i  [6.00]
Applicable also to others like Shell, their "ordinary" formula option is already good enough for the sake of pure-ness and octane number for our E9x. the "superior" option is with their own particular add-ons mostly on cleansing effect rather than on power concerns.
__________________
E90 330i VB32 Monaco Blue/Beige/BurledWalnut - Prodrive GC-014I Forged 18" 8.5J/9.5J British Black + Michelin PSS 225/255 + Bilstein PSS10 + H&R ARBs + ACS bodykit + Brembo Gran Turismo Brake Kit 355-6F/345-4R + Rogue Engineering IKON exhaust kit + Simota Intake V2 + MFD Scoops + Blackline w/ red bulbs + PIAA H11 4700K fog + PIAA 6500K White Angel Eyes + MTEC 7000K license plate LED + GS-55 front doors LED + Valentine-1
Appreciate 0
      02-16-2009, 10:49 AM   #3
ArktisE92
Private First Class
ArktisE92's Avatar
Hong Kong
9
Rep
134
Posts

Drives: E92 (Sold) / GT3RS / SLK55
Join Date: May 2008
Location: 852

iTrader: (0)

Quote:
Originally Posted by Bimmer /E93 View Post
I learned from them the last day, that all gas petrol in HK is 98 Octane
Mind if I asked how you found that out, and is that RON or MON? I've been digging around the Caltex and Shell website for months to no avail... the octane number does mean a real difference to tuned engines...
Appreciate 0
      02-16-2009, 10:23 PM   #4
M_M
Second Lieutenant
9
Rep
224
Posts

Drives: 335i
Join Date: Oct 2008
Location: Earth

iTrader: (0)

Quote:
Originally Posted by ArktisE92 View Post
Mind if I asked how you found that out, and is that RON or MON? I've been digging around the Caltex and Shell website for months to no avail... the octane number does mean a real difference to tuned engines...

we got 98 ron over here, equal to 93 mon.
Appreciate 0
      02-16-2009, 11:21 PM   #5
ArktisE92
Private First Class
ArktisE92's Avatar
Hong Kong
9
Rep
134
Posts

Drives: E92 (Sold) / GT3RS / SLK55
Join Date: May 2008
Location: 852

iTrader: (0)

Quote:
Originally Posted by M_M View Post
we got 98 ron over here, equal to 93 mon.
Thanks... it's funny how the gas companies over here don't advertise that at all.
Appreciate 0
      02-16-2009, 11:28 PM   #6
Bimmer /E93
In The Flesh
Bimmer /E93's Avatar
Hong Kong
18
Rep
122
Posts

Drives: E93 (Sold), Z4 35i on board
Join Date: Nov 2008
Location: Hong Kong

iTrader: (0)

I run after Caltex, calling almost everyday, until I got to the right department (I think) and they confirmed that 98 RON is the standard in HKG.
I than called OFGAS to confirm that RON 98 is the standard in HKG.
What I was not able to get, is the difference between Gold and Platinum @ Caltex, though I agree with little_croco, this has to do with cleaning agents rather than Octane
Appreciate 0
      02-17-2009, 12:05 AM   #7
nottie88
Private
Hong Kong
3
Rep
55
Posts

Drives: E92 335
Join Date: Apr 2008
Location: Hong Kong

iTrader: (1)

Quote:
Originally Posted by Bimmer /E93 View Post
I run after Caltex, calling almost everyday, until I got to the right department (I think) and they confirmed that 98 RON is the standard in HKG.
I than called OFGAS to confirm that RON 98 is the standard in HKG.
What I was not able to get, is the difference between Gold and Platinum @ Caltex, though I agree with little_croco, this has to do with cleaning agents rather than Octane

Platinum is a RON 98 fuel and Gold is a RON 94-95. On our E9x the fuel cap labels min RON 91 which actually means RON 95 in Hong Kong. In actual fact if your car is purely stock standard Gold would be fine and possibly 98 when the temperature gets hotter.

However there is a difference between Caltex fuel and Shell fuel. Caltex is a clean fuel. It gets a rating of RON 98 because of the certain cleaning agents the fuel is processed meaning the fuel is burned cleaner and leaner. Shell is a performance fuel so it has a octane additive in it to maintain a constant 98 burn.
Appreciate 0
      02-17-2009, 12:16 AM   #8
Bimmer /E93
In The Flesh
Bimmer /E93's Avatar
Hong Kong
18
Rep
122
Posts

Drives: E93 (Sold), Z4 35i on board
Join Date: Nov 2008
Location: Hong Kong

iTrader: (0)

Nottie, how did you get that gold is 94-95 RON? Caltex confirmed to me that it is 98.
I don't quite understand your statement, can you plz elaborate. a 98 RON is a 98 RON, no need to add a booster (is what you mean by booster?) to keep it 98
True that Caltex emphasis on Techron, a cleaning agent, & Shell call its fill "V-Power"
Shell on its website, claim that V-Power can be used for any car that runs unleaded fuel, using powerful cleaning agents and Friction Modification Technology (FMT); very similar claim to Caltex and its Techron... I am not an expert here, but a 98 is a 98; and if you need performance, you might want 100 or 101 and I am not sure if this is available in HKG
Appreciate 0
      02-17-2009, 04:21 AM   #9
M_M
Second Lieutenant
9
Rep
224
Posts

Drives: 335i
Join Date: Oct 2008
Location: Earth

iTrader: (0)

Quote:
Originally Posted by ArktisE92 View Post
Thanks... it's funny how the gas companies over here don't advertise that at all.
sorry man, typo. 98RON= around 88MON
Appreciate 0
      02-17-2009, 04:34 AM   #10
M_M
Second Lieutenant
9
Rep
224
Posts

Drives: 335i
Join Date: Oct 2008
Location: Earth

iTrader: (0)

Quote:
Originally Posted by Bimmer /E93 View Post
Nottie, how did you get that gold is 94-95 RON? Caltex confirmed to me that it is 98.
I don't quite understand your statement, can you plz elaborate. a 98 RON is a 98 RON, no need to add a booster (is what you mean by booster?) to keep it 98
True that Caltex emphasis on Techron, a cleaning agent, & Shell call its fill "V-Power"
Shell on its website, claim that V-Power can be used for any car that runs unleaded fuel, using powerful cleaning agents and Friction Modification Technology (FMT); very similar claim to Caltex and its Techron... I am not an expert here, but a 98 is a 98; and if you need performance, you might want 100 or 101 and I am not sure if this is available in HKG
you're right, we had 95ron back in early 90's, but now we only got 98ron as standard.

other than the price, the only difference between regular and v-power is that v-power contains much more concentrated detergent to prevent/remove carbon deposits from inside the engine, that's it.

btw, shell used to add ethanol(sp?)to boost up the octane rating, but not now, due to high cost and compatibility.. sth like that.

edit: you can even get 104ron in hk, but it's pretty pricey.

Last edited by M_M; 02-17-2009 at 05:35 AM..
Appreciate 0
      02-17-2009, 04:35 AM   #11
Bimmer /E93
In The Flesh
Bimmer /E93's Avatar
Hong Kong
18
Rep
122
Posts

Drives: E93 (Sold), Z4 35i on board
Join Date: Nov 2008
Location: Hong Kong

iTrader: (0)

I think there is a missconcept here. RON is not equal to a figure in MON; The 2 measurement for Octane is RON & AKI.
Having said that, RON (Research Octane Number) which correlates best with low speed, mild temperature knocking conditions.
MON (Motor Octane Number) correlates best with high speed and high temperature knocking conditions.
For a given gasoline, RON is always greater than MON. The difference between the two is called the sensitivity of the gasoline.
This sensitivity is affected by the by the gasoline chemical composition chemistry used among different gas companies.
AKL on the other, widely used in US is calculated at [(RON+MON)/2]

.........
Appreciate 0
      02-17-2009, 04:52 AM   #12
M_M
Second Lieutenant
9
Rep
224
Posts

Drives: 335i
Join Date: Oct 2008
Location: Earth

iTrader: (0)

ron and mon, just different type of rating and testing method, ron will be about 10 points lower than ron, just like ps and hp if you know what i mean. anyways gas stations don't use mon as a octane rating, only ron or (r+m)/2 (in usa, and some parts of canada)
Appreciate 0
      11-26-2011, 08:31 PM   #13
stevensonleehk
Private First Class
34
Rep
123
Posts

Drives: E90 323i
Join Date: Aug 2008
Location: Hong Kong

iTrader: (0)

Quote:
Originally Posted by nottie88 View Post
Platinum is a RON 98 fuel and Gold is a RON 94-95. On our E9x the fuel cap labels min RON 91 which actually means RON 95 in Hong Kong. In actual fact if your car is purely stock standard Gold would be fine and possibly 98 when the temperature gets hotter.

However there is a difference between Caltex fuel and Shell fuel. Caltex is a clean fuel. It gets a rating of RON 98 because of the certain cleaning agents the fuel is processed meaning the fuel is burned cleaner and leaner. Shell is a performance fuel so it has a octane additive in it to maintain a constant 98 burn.
Sorry to bring this old thread back into discussion, but if the RON numbers on both Shell FuelSave and V-Power are the same, can someone explain to me why evidently V-Power fuel creates better acceleration and fuel economy? I know its not only psychological or a placebo effect ...
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:37 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST