How Much Difference Do High Octane Fuels Make To Power Outputs?

When i use 95 octane the car run smoother and gives a little bit of better acceleration, plus it doesn’t make clanking noises when accelerating… Since i don’t like clanking noises, i always use 95 octane, although it costs more it prevents noises and provides more mileage to run with 1 charge.

All these people think that 3-6% difference in ethanol is gonna be a big difference…

Kia Rio I used to drive said to only use 98 octane(new zealand), put 91 in once and it was much more sluggish and got bad fuel economy, when my mx5 was standard if I put 91 octane in it never felt slower but fuel economy was worse, now it’s turbocharged and tuned to 98 so I have to put that in now as its tuned for it with high boost settings. Used to have a nissan wingroad it didn’t feel any different no matter what octane fuel you put in.. Isn’t it funny how not all cars are the same? #hype

think putting a vw on a dyno will give accurate results

the difference is more in the distance than the power put 2 lires of each fuel and see where they stop is a more appropriate test

That extra 4hp can easily be felt with a motorcycle

The RON acronym seems kinda pointlessly vague compared to AKI. I mean, Anti Knock Inex is pretty straight forward, even for people who know little about cars.

Also, whatever your owners manual states is almost always correct. The engineers who build, tuned, and tested the motor will know best what fuels it works better with. If 91 octane is your minimum then don’t go below that, but unless otherwise stated in the manual going above that won’t really do anything. I made the mistake of putting 87 in my BRZ(minimum is 91, recommended 93) not long after I got it and the ECU pulled timing way back to avoid damage, and I had to avoid going WOT until I got to empty and refilled with 93, and the difference it made was huge.

Or you could just not be a cheap-ass and use the manufacturer recommended octane rating.

Unless you go for that 0.01 seconds on track. You seriously dont need to think about what brand you put in your tank.

The problem is in my country a gas station with 95 ron is really hard to find the most common is 90 ron (there is a 88 and 92 ron also available but, who the hell putting 88 ron on a car!!)