Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 04-27-2017, 08:13 PM   #1
Registered User
 
Porsche9's Avatar
 
Join Date: Sep 2013
Location: Chandler, AZ
Posts: 1,795
Higher octane fuels could become available in the future

Europe already have higher octane fuel and it could be coming to the US in the future. Wouldn't that be nice especially for us in the west were anything better than 91 is hard to find.

Higher-Octane Fuels Are Under Development, Report Says - Motor Trend

__________________
03 Carrera
02 Boxster S Guards Red, black interior with matching hardtop
89 Carrera 4
89 944 S2
78 911SC
Porsche9 is offline   Reply With Quote
Old 04-27-2017, 10:16 PM   #2
Registered User
 
Fintro11's Avatar
 
Join Date: Jun 2013
Location: Nanaimo, Vancouver Island, British Columbia, Canada
Posts: 893
Love my chevron 94
Fintro11 is offline   Reply With Quote
Old 04-27-2017, 10:26 PM   #3
I am my own mechanic....
 
Timco's Avatar
 
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,433
I've only seen better than 91 at the old LHM track.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Timco is offline   Reply With Quote
Old 04-27-2017, 10:36 PM   #4
Registered User
 
Join Date: Nov 2016
Location: London
Posts: 234
Run on 99 all the time, lovely stuff.
That986 is offline   Reply With Quote
Old 04-28-2017, 07:03 AM   #5
Multi-Boxer Driver
 
Deserion's Avatar
 
Join Date: Nov 2010
Location: Orange Park, FL
Posts: 1,248
Garage
I think that the article could be better written. We're pretty much running the same gas in Europe and North America, in general. The author says Europe has higher octane - yes, but that's because it's measured differently. Europe posts the RON (Research Octane Number), while North America posts AKI (R+M)/2 (Anti-Knock Index [RON+MON]/2).

98 RON = 93 AKI
95 RON = 91 AKI
91 RON = 87 AKI

So in the last paragraph, there is no actual difference in actuality. The GM engineer doesn't state which method is used in mentioning 114 octane (likely RON, I would guess). I run 93 AKI in my Porsches.
__________________
-Chris
2004 Porsche Boxster 2.7
1991 Porsche 911 C2 Targa 3.6
2017 Subaru Outback 3.6R
Deserion is offline   Reply With Quote
Old 04-28-2017, 07:23 AM   #6
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,221
Quote:
Originally Posted by Deserion View Post
I think that the article could be better written. We're pretty much running the same gas in Europe and North America, in general. The author says Europe has higher octane - yes, but that's because it's measured differently. Europe posts the RON (Research Octane Number), while North America posts AKI (R+M)/2 (Anti-Knock Index [RON+MON]/2).

98 RON = 93 AKI
95 RON = 91 AKI
91 RON = 87 AKI

So in the last paragraph, there is no actual difference in actuality. The GM engineer doesn't state which method is used in mentioning 114 octane (likely RON, I would guess). I run 93 AKI in my Porsches.
Motortrend rarely get anything correct; nothing new here..........
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 04-28-2017, 08:57 AM   #7
BER
Registered User
 
BER's Avatar
 
Join Date: Mar 2015
Location: Virginia
Posts: 11
Post

We used to be able to get 94 octane at Sunoco stations, but I have not seen it for a couple years.

My local airport will dispense 100 octane Avgas into 5 gallon metal cans. Cost is $4.75/gallon.

I don't do it often, but I will occasionally mix the 100 octane Avgas with 93 octane pump premium in my 3.2 Carrera Sport and it runs like a scalded cat! Have not tried the mix in my Boxster yet, but I will soon.
__________________
Regards, Bruce
'01 Boxster
'84 911 Carrera Sport
BER is offline   Reply With Quote
Old 04-28-2017, 09:08 AM   #8
Registered User
 
AZ986S's Avatar
 
Join Date: Jun 2016
Location: Arizona
Posts: 370
Quote:
Originally Posted by BER View Post
We used to be able to get 94 octane at Sunoco stations, but I have not seen it for a couple years.

My local airport will dispense 100 octane Avgas into 5 gallon metal cans. Cost is $4.75/gallon.

I don't do it often, but I will occasionally mix the 100 octane Avgas with 93 octane pump premium in my 3.2 Carrera Sport and it runs like a scalded cat! Have not tried the mix in my Boxster yet, but I will soon.
$4.75 is much cheaper than $8.50 I pay for the 100 Octane unleaded I get for track events. I believe the 100LL Avgas still contains some lead though, so I wouldn't use it.
__________________
2002 Boxster S - NHP 200 Cell Headers,test pipes,Borla CatBack,Competition Plenum,74 mm TB, EVOMS Tune,Tarett UDP,Eibach Swaybars,BIlstein PSS9s,TuneRS rear toe links,wheel studs,15 mm wheel spacers on all 4,EBC yellow stuff pads,Sebro rotors, EBS oil baffles,160 deg Thermostat,2 quart Accusump,full filtration remote oil filter,rad fan switch,custom gauge/switch plate, Race Capture data logging, 90K miles
AZ986S is offline   Reply With Quote
Old 04-28-2017, 10:40 AM   #9
edc
550 Anniversary
 
edc's Avatar
 
Join Date: Jul 2012
Location: Surrey, UK
Posts: 637
Garage
You can get 102 RON. Mainly in Germany and continental Europe. If you jus want an octane boost then put some octane booster in with your fuel.
__________________
Current: 550 Spyder Anniversary- Carnewal exhaust - 100 cell cats - stainless manifolds - 4" underdrive pulley - poly gearbox mounts - rear lower alu brace - adjustable rear toe links
Sold: 986S - Zenith Blue - 18" Sport Classics - Black Zunsport grilles - Stainless silencer and manifolds - K&N panel - shortshift - M030 suspension - 75mm throttle body - custom 83mm intake - SmartTop - custom remap - MDS underdrive pulley
edc is offline   Reply With Quote
Old 04-28-2017, 11:50 AM   #10
Registered User
 
lkchris's Avatar
 
Join Date: Jan 2014
Location: Albuquerque, NM, USA
Posts: 667
It's irrelevant to current car owners.

The point is, the higher your compression, the more efficient your motor. This is a fuel saving thing and is occurring to urge manufacturers to produce higher compression engines. Turbocharged, maybe.

A given motor only needs the octane it needs and feeding it anything higher does nothing except possibly waste money.
__________________
Kent Christensen
Albuquerque
2001 Boxster
2007 GL320 CDI, 2010 CL550
3 BMW motorcycles
lkchris is offline   Reply With Quote
Old 04-28-2017, 05:56 PM   #11
Registered User
 
Porsche9's Avatar
 
Join Date: Sep 2013
Location: Chandler, AZ
Posts: 1,795
Quote:
Originally Posted by lkchris View Post
It's irrelevant to current car owners.

The point is, the higher your compression, the more efficient your motor. This is a fuel saving thing and is occurring to urge manufacturers to produce higher compression engines. Turbocharged, maybe.

A given motor only needs the octane it needs and feeding it anything higher does nothing except possibly waste money.
True, but it would be nice to be able to get 93 octane which are cars are designed for. Modification to fueling and ignition timing could also yield power increases if you have access to higher octane fuel. Back in the day I would advance ignition timing at the distributor as much as the fuel would allow before ignition knock was induced. If the car would run fine on regular you could run super and advance the ignition a bit and squeeze some extra power out of the car. Obviously this was back in the day of distributors.

__________________
03 Carrera
02 Boxster S Guards Red, black interior with matching hardtop
89 Carrera 4
89 944 S2
78 911SC
Porsche9 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 03:00 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page