I have a 2006 style which doesn't tell me my MPG, I was just wondering how much more MPG on average you get from using it over regular unleaded.

I've always used Shell V-Power (99 ron) in my ST but used standard unleaded in previous cars, so I don't know if I'm gaining any MPG from it. With a non-turbo engine you probably won't gain anything, except when the engine is tuned to take advantage of higher octane fuel.

My car's a little more responsive on 99ron = I'm probably abit more playful with my right foot = not saving anything but still fun lol

I have looked on Ford Etis and the specification for my car shows that it is programmed for 95 octane. however I have read that my 1.0 Ecoboost has got double knock sensors and the ignition is capable of advancing to take advantage of higher octane. Next time I am low on fuel I will fill with 97 octane and if it goes ok on that I will then try 99.

Used it when i was a boy racer thinking it made a lot of difference many years ago lol , as one says make sure your car is ok to accept 99 ron or you could cause damage in one way or another

Not worth the extra £ unless it's a performance engine

My car's a little more responsive on 99ron = I'm probably abit more playful with my right foot = not saving anything but still fun lol

#Clubfoot ;)

I have looked on Ford Etis and the specification for my car shows that it is programmed for 95 octane. however I have read that my 1.0 Ecoboost has got double knock sensors and the ignition is capable of advancing to take advantage of higher octane. Next time I am low on fuel I will fill with 97 octane and if it goes ok on that I will then try 99.

I've used 99 in my 1.0 EcoBoost, no problems at all - and that's with a stage 1 remap. I won't use it all the time, but now and then to keep internals of the engine free from gunk/etc.

Not worth the extra £ unless it's a performance engine

My last car lost 20bhp by NOT using 99 ron.( Performance car)

My last car ( Fiesta ST ) gained 20bhp by adding a K&N sticker to the airbox . . .

My car gained 5 BHP, by adding this to the front grille:

;)

I have looked on Ford Etis and the specification for my car shows that it is programmed for 95 octane. however I have read that my 1.0 Ecoboost has got double knock sensors and the ignition is capable of advancing to take advantage of higher octane. Next time I am low on fuel I will fill with 97 octane and if it goes ok on that I will then try 99.

I've heard you might have to wait til the car has got though about 2 full tanks of the new fuel so that the ECU has time to re-learn, that is if it's able to take advantage of the higher octane fuel.

Used it when i was a boy racer thinking it made a lot of difference many years ago lol , as one says make sure your car is ok to accept 99 ron or you could cause damage in one way or another

I think any modern cars will be fine with 99 ron, even if they don't gain anything from it. If this wasn't the case there would be some warning about using the wrong fuel, but I think you can mix petrol of any octane available without any issues.

Using 99ron won't damage anything, I used to run it in my R33 and that engine was (technically) 20 years old.

Using a lower octane fuel than what a car is designed for could potentially cause damage through pinking, pre ignition, detonation.

Biofuels are a different story as the increase in ethanol can eat through rubber pipes and seals if they're not designed for it.