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octane
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  1. Classic Saab 9-3/GM900 (1994 - 2002)/Conv ( -2003)
    :thumbsup::rolleyes: Hi I have been running my 2001 93 on regular petrol, 91 octane without any problems, goes like a good 93 turbo should. I tried using 95 octane to see if it made any difference, I have heard it can improve performance and economy but all that happened is the economy was...
  2. Saab 9-3 Sedan/Combi/TurboX/AWD(2003+)/Conv(2004+)
    Hello everyone, Any views/opinions on using super unleaded over normal??? Saab 9-3 Aero 2.0T 2006 Will it make a difference or is it a waste of time? Many thanks for any thoughts....
  3. Saab 9-3 Sedan/Combi/TurboX/AWD(2003+)/Conv(2004+)
    The gas filler cap on my 2004 9-3 vert recommends 90 octane, with a minimum allowed 87 AOR (I assume that's average octane rating?) My first couple of tanks were 93, then 90, and I've just filled the tank with 87 octane regular unleaded. The car seems to run the same regardless. Any worries...
  4. Saab 9-3 Sedan/Combi/TurboX/AWD(2003+)/Conv(2004+)
    Hi All, Just filled up the 1.8t Vector Convertible for the first time and noticed on the inside of the fuel cap a black sticker with green lettering stating 98 RON ONLY. Further down there is a smaller label saying min 95 RON. Is the 98 RON sticker just a 'use unleaded only' reminder or would...
  5. Classic Saab 9-5 (1997 - 2009)
    I run my 2004MY Aero estate auto (with a Maptun Stage 1) on high octane (97/98, depending on supplier) as a matter of course. I'm afraid to say that, in the current economic climate, I'm wondering whether it's worthwhile or just a waste of money in the winter. I understand the basic reasons for...
  6. Saab 9000 (1984 - 1998)
    I have recently upgraded my car from LPT to FPT with Saab's original ECU (4301917) and APC valve. I used to run my car on 95 octane before but I do not know now if the FPT will benefit from 98 octane. I know the 225hp Aeros need the higher octane gas for their increased boost but I am unsure...
  7. Saabscene: Performance
    I feed my V6 Wagon a regular :crazy: diet of Vpower which I believe is rated 99 octane. I have the hirsch ECU upgrade and a large 98 octane only sticker on the inside of the fuel filler cap. I have occasionally used "normal" superunleaded [97 octane] but not the standard 95 stuff as yet. Has...
  8. Classic Saab 9-5 (1997 - 2009)
    Is this a bad thing to do to an LPT motor? Or can it tolerate it and recalibrate itself?
  9. Help, Advice, Saabs and Motoring
    More Tesco stores in Scotland about to get 99 octane: Scotland Aberdeen Alloa Ayr Bathgate Cumbernauld *Cupar *Dalkeith Dundee *Dundee...
  10. Help, Advice, Saabs and Motoring
    I've been using the Tesco 99 since it became available - seems to give a benefit in smoother running, if not top end performance. Is there an equivalent in France yet? Haven't been for a year. Germany and Austria have Shell V-Power at 100 and the other suppliers there have followed suit...
  11. Saabscene: Performance
    For discussion! OK, so Tesco Super Unleaded (RON99) is 95% unleaded and 5% bio-ethanol. Morrisons bio-fuel (RON 115 I think) is 85% bio-ethanol and 15% unleaded. So, in theory you could use Morrisons bio-fuel as an octane booster with standard unleaded, and as its cheaper than unleaded it...
  12. Classic Saab 9-5 (1997 - 2009)
    I've filled up with a couple of tankfuls of Tesco 99 since I came back from France (98 octane) and my Aero seems to like it! Seems smoother than with the Sainsbury 97. Maybe a false impression, but Tesco is nearer than Sainsbury and there's only 1 p a litre in it.
  13. Classic Saab 9-3/GM900 (1994 - 2002)/Conv ( -2003)
    My 9-3 has recently decided to light up the check engine light. OH NOO!!! I had put in some "Nos Octane bosting and fule system treatment" bottle in the fuel tank some time last week and I'm wondering if this could be cause of this as the manual indicates that the check engine light is ignition...
  14. Saab 9-3 Sedan/Combi/TurboX/AWD(2003+)/Conv(2004+)
    Hi all, Have finally got back behind the wheel of a Saab after 4.5 years, having picked up my new 9-3 Aero yesterday. I notice from Saab's website that the recommended fuel grade for the Aero is 95 octane. Question for all you Aero drivers out there: is there any improvement from using 97/98...
  15. Saabscene: Performance
    The pro's and con's of super over regular unleaded has been done to death so I dont want to start up this discussion, but does anyone use 95 RON and add an octane booster? If so which one do you feel delivers the best results? The only ones I have seen are at Halfords such as STP octane boost...
  16. Classic Saab 9-5 (1997 - 2009)
    ....in North Watford is now only 2p /litre more than 95. 80.9p v 78.9p Been using it since the Shell garage opposite closed for a refurb. Oddly the Shell seems to be reopening as a Sainsbury Local across the roundabout from the main store . Don't know what fuel they will be selling when...
  17. Help, Advice, Saabs and Motoring
    ....in North Watford is now only 2p /litre more than 95. 80.9p v 78.9p Been using it since the Shell garage opposite closed for a refurb. Oddly the Shell seems to be reopening as a Sainsbury Local across the roundabout from the main store . Don't know what fuel they will be selling when...
  18. Saabscene: Performance
    I have been experimenting with a number of different octane fuel ratings and types of late. One thing that caught my attention is that the car performance varied with fuel type. This variation has been covered on SSc to a large degree, so I won't rake over that again. What I am interested in...
  19. Saabscene: Performance
    I have always used octane boosters on and off in the past, usually either Aldon's or STP's Today, I thought I would try something a little different, picked up a can of pro blend nitro power, which was pretty expensive (£19) Before I go using it, has anyone else tried this ? and did it have...
  20. Saab 9000 (1984 - 1998)
    Hi all, I just acquired this car a few weeks ago and am wondering whether there is any harm to the engine in using regular gas. I'm in the States so that would be 87 octane. Also can I do the radiator flush myself? Thanks!
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