| Author |
Message |
Mark Pautz (Malfark)
Member
Username: Malfark
Post Number: 368
Registered: 10-2002
| | Posted on Thursday, September 04, 2003 - 3:13 am: | |
Hi All,
Both Meridien Modena in the UK (http://modena.meridien.co.uk) and Robert Fehr in Germany (as well as Wolfgang and Uwe on this list) suggested that I use the new Shell 100 octane in my Euro spec 328 GTS. I just did a trans-Europe drive using Shell as much as possible and had no problems at all...bar an HT lead that melted on my exhaust!
Cheers, MARK |
James Glickenhaus (Napolis)
Intermediate Member
Username: Napolis
Post Number: 2495
Registered: 10-2002
| | Posted on Monday, September 01, 2003 - 7:37 pm: | |
Jack
I beleive in the US we use a different rating system which gives a lower number than the system you use. In the US we use Pump octane rating which is RON+MON/2. (MON is Motor Octane Number)
Best |
Jack Habits (Ferraristuff)
Member
Username: Ferraristuff
Post Number: 969
Registered: 4-2003
| | Posted on Monday, September 01, 2003 - 5:53 pm: | |
Jim,
You could be right but I thought the ratings were universal (or at least global).
I believe that here in Europe we use the RON (Reaseach Octane Number if I am not mistaken). Would you happen to know what is used in the USA?
Mark,
true but then you need to change the settings to take advantage of it. Simply changing to higher octane alone will not do anything.
When I was young (ahum...) we used to buy barrels of aviation gas from the mechanics at a nearby airfield. That (reportedly) had a european octane rating of between 105 and 110. Fiddling with the ignition to bring it as close to knocking as you could get was GREAT fun!
Jack |
Julio Valladares (Jbanzai)
New member
Username: Jbanzai
Post Number: 23
Registered: 2-2002
| | Posted on Monday, September 01, 2003 - 4:15 pm: | |
Thanks,
I found somewhere else, and as James says, that the European 98 Unleaded its the one who matches the 93 Octane in the US. So I will be using 98, that is also the highest you can find here.
I am affraid I have been using the wrong octane gas the last 2 months, 95 which is a little bit les than 91 in the US, I was running risks of knocking.
I will fix that now, thank you all.
Julio. |
Mark Collins (Markcollins)
Member
Username: Markcollins
Post Number: 333
Registered: 7-2002
| | Posted on Monday, September 01, 2003 - 3:32 pm: | |
Jack
I'm not sure i would agree, I'm no expert but I believe that if you increase the knock resistance then it is possible to adviance the ignition and improve performance, it's true that I suspect the 328's ecu is probably not clever enough to take advantage of this but more modern cars certainly do. I frequently use Shell Optimax (V-power in Europe although sadly only 98 octane in the UK) in my BMW 540i and noticed a considerable improvement in performance and slightly better economy (+4%) |
Wolfgang Eistert (53345)
Member
Username: 53345
Post Number: 615
Registered: 3-2003
| | Posted on Monday, September 01, 2003 - 12:58 pm: | |
I prefer (here in Germany) the SHELL V-Power 100 octane for my US 308 QV (no cat/test pipes).
I`m very happy since I have used it for the first time.
Wolfgang
FORZA FERRARI |
James Glickenhaus (Napolis)
Intermediate Member
Username: Napolis
Post Number: 2492
Registered: 10-2002
| | Posted on Monday, September 01, 2003 - 12:48 pm: | |
US and European octane ratings are different. I would use the highest unleaded octane you can find.
I beleive 93US is closer to 98 European. |
Jack Habits (Ferraristuff)
Member
Username: Ferraristuff
Post Number: 961
Registered: 4-2003
| | Posted on Monday, September 01, 2003 - 11:12 am: | |
Hi Julio,
despite popular belief, an increased octane rating will NOT enhance the performance of an engine...
It is ONLY a rating for the knock-resitance of the fuel.
If your car ran well at 93 unleaded, it will run equally well on 95 unleaded.
98 Unleaded will do nothing extra except costing extra.
Jack |
Julio Valladares (Jbanzai)
New member
Username: Jbanzai
Post Number: 17
Registered: 2-2002
| | Posted on Sunday, August 31, 2003 - 8:27 am: | |
Hello,
I have a 328 GTS USA version, it was my car in the USA for the last 3 years and I brought it back to Europe when I moved back 3 months ago.
Originaly the car was intended to use unleaded 93 octane gasoline. Since I am back in Europe I've been using the closest thing to that available here in Spain, that is unleaded 95 octane.
However I have doubts if I should not use the unleaded 98 octane gas. I guess the car will perform slighly better with 98 octane, but does anyone here know if doing that would cause any motor problems in the medium/long term?
Thanks.
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