Yes it will run fine but the fuel thatsnowgetting injected burns faster, meaning it has combusted before it should have, meaning the car has actually got poorer performance.
The octane rating of a fuel has nothing to do with how 'fast' it burns. This is more to do with the volatility of the fuel which differs between seasonal blends to account for environmental temperature changes. The higher octane rating means the fuel has a higher resistance to auto ignition (when the air/fuel mixture explodes before the spark from the plug under high compression) or 'pinking'.
They are actually designed for the higher performance cars such as your BMW M3s all the way up to the lamborghini's.Some tuners after remapping their ecu use super unleaded as their engine is now designed to run on a<strike> faster burning </strike>higher octane fuel.
This is true, some cars do have an ECU thataccommodate higher octane fuels to alter engine conditions to give higher compression making use of the fuel's properties to not auto ignite.
But back to the point, I am unsure if the 208 gti has the ability to benefit from the more expensive fuels. I certainly can't tell the difference in my gti?
Schneider said:I have always used Super unleaded shell Optimax then nitro and now nitro+ I perfer it for the chemical structure and cleaning properties over the regular stuff.
Pug208GTI said:Schneider said:I have always used Super unleaded shell Optimax then nitro and now nitro+ I perfer it for the chemical structure and cleaning properties over the regular stuff.
How do the perceived extra cleaning properties of the 97RON fuels help the GTI. It has a direct injection engine... the fuel is injected directly into the combustion chamber so it has no ability to clean anything.
If you want high octane then you could use E85 - that is around 105RON
Pug208GTI said:Direct injection sprays the fuel directly into the combustion chamber. So it can't do any cleaning of the inlet valves etc like on a port injected or carburettored car.