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Old 8th September 2016, 16:26   #151
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Default Re: Speed 97 and high RON petrol discussion thread

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Originally Posted by reignofchaos View Post
I have a 1.6L ecoboost in my Volvo. It was 180HP from factory and I remapped it to 200HP via the manufacturer sanctioned Polestar map.

I have tried speed 97 (there is only one pump in bangalore) once and to be honest didn't notice that big a difference over the normal 91 octane Shell VPower. Good quality 91 octane should be fine. Don't bother with octane boosters.
I'd like to eat my own words here . After a few tankfuls, Speed 97 definitely makes a big difference.

The engine revs faster, the tiny bit of turbo lag that existed before is completely gone. The acceleration is more manic and idle is significantly quieter.

After persisting on it for a while, I'd definitely not mind spending the extra 10 bucks on Speed 97 now.
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Old 8th September 2016, 16:31   #152
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Default Re: Speed 97 and high RON petrol discussion thread

@reignofchaos; I am sure your engine is designed for the European Premium, ie 95RON. So 97 is closer.

It is no great shakes, since when I was a student (1973-76, no Unleaded then) my 'ornery Ford Escort 1300 wanted 97 RON (**** petrol), but ran quite happily on 93. My boss had a BMW 2800 which wanted 100RON (*****)which used to be available at some pumps. Basically the pumps had 2* and 5* and a mixer to give what you wanted.

Why no BS-IV Premium then?

Last edited by sgiitk : 8th September 2016 at 16:33.
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