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Haakon last won the day on 20 January

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  1. If you need a wrench you’re doing them up too tight Mind you, some variants on the F4R are bastards for access...
  2. That and being able to retain fitness are the only things I want back from my misspent yoof... Finally figuring women out long after my looks faded was a cruel twist of fate too. (sorry @biologist...)
  3. Lol. Ok, I think you’re probably deliberately missing the point. Maybe it makes you feel better... tevs. Enjoy your tribalism and your toys.
  4. And you’re still completely missing the point. And I can’t make it any clearer... Although if you hang out with “other car scenes” perhaps you should at least understand Renaults are not all that unique...? These are all basic ICE tuning 101 principles.
  5. Oh. Odd. Mature... If it’s not standard and has a map that is deliberately designed to take advantage of any increased knock resistance, than that’s not really relevant to road cars mapped for 95. My original point is that at least one testing round found many 98 fuels were not 98, but as I think you or someone said even the 98 fans acknowledge brands vary in efficacy. So I understand that some will indeed be greater than 95 at least. Now if you have a non standard map designed around that than obviously you’ll see a difference. Im saying that that is not always the case with road cars with factory maps around 95. And that there can be other detrimental effects (cold starts in NA Clios, plug fouling in Alfas). So you’re being weird and unnecessarily aggressive. We can both be right
  6. What’s your model? Turbo? Standard? it’s an interesting idea though that our 95 is shit enough that some engines might need “98” to get back to performance engineered for European 95...
  7. I’d be interested in hearing what the tuners reckon is behind the cited improvement on 98. Is it the map being written to advance and/or increase boost? Given the energy content is the same (because physics...) the advantages is in being able to extract more. Now there is obliviously no change in compression ratio, so it must be either boost (Clio 2/3 owners look away) or ignition timing. Anecdotes just don’t do it for me. I’d love to see some evidence of software that will explicitly be able to take advantage of the higher octane. Failing that, I just don’t want to buy into sales pitches... Fill up with 98 on your way to Maccas and home to watch your favourite home renovation show. Consume baby consume.
  8. I’d argue the lack of technical literacy amongst some of the more aggressive posters here is a bit embarrassing... But hey, whatever floats your boat - if you’re ok to accept the marketing spiel for the fuels on face value that of course is your prerogative. But just don’t think RS engines are particularly unique - the concepts being discussed here will apply to all modern internal combustion engines.
  9. Nice one I look forward to it.
  10. I should probably do the same but my driving is too irregular, so I resort to chemistry, physics and engineering - which I am passingly decent at all of but happy to be corrected.
  11. I do as a rule, but FCA gave me free servicing for three years and it got a transmission software update. They did claim to change the brake fluid and all the bleed nipples look very very untouched! The 98 fuel fouling plugs is just an interesting anecdote I’ll research.
  12. Anyhoo. The Alfa/Maserati/Ferrari dealer workshop say the 98 is cooler burning because of the additives. Cooler burning combined with the additives means they find a lot of fouled plug problems, especially on cars that do short trips and city use. For those of you swinging your own spanners and using 98 anyone seen carbon build up on plugs?
  13. Lies? That’s an odd claim. I just found it interesting that at least one major workshop that deals in some comparable engines to some RS models (ie smaller capacity turbos) were finding some detrimental effects from using 98 where 95 is specified. Left me wondering what is happening. I know octane boosters can foul plugs, but given 98 is the same energy content as 95 and 91 I’m not sure how it could be burning hotter and eroding plugs. I’ll ask again if it’s fouling or erosion they’re finding. Modern piston engines all have far more in common than differences, it’s all interesting if have thought.
  14. Oh well, I thought it might be interesting for the technically literate amongst us...
  15. The big Alfa (and Ferrari and Maserati etc) dealer in Melbourne says they tell their Alfa customers at least to not use 98. Has zero effect on performance but makes them eat sparks plugs faster. They’re a very highly strung 1.4 turbo engineered for 95 and do not like anything different to that. This is an engine that wants new Iridium spark plugs every 30Kkm!
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