It is the same as if they were using European 95oct fuel.In our website you will find RON ratings required for each remap stage.95 RON means you can use 91 PON in the States.Everywhere else in the world, 98 RON and 95 RON gasoline usually are fit.Anything lower then that and your modern engine will have a lot of trouble adjusting, even on the stock calibration.There are a few countries around the globe that are using Ethanol in their fuels. Discussion. I used to work as an engine calibrator at Ford, and we would design a car to run on "regular", but optimise for "premium", i.e. The Prius C is rated at 92 MPG in Japan but 53/46 MPG in the US, the US just uses a much more realistic testing standard.I think that people are getting mixed up about the energy because they are confusing efficiency.That doesn't mean however, that you will get more energy out of a higher octane gas. 91 RON means that 87 pump octane for the US.This guy explains really well what Octane rating is:US and Europe calculate it in different ways which makes US fuel look like it has a lower rating but in reality they've got the same rating. More power at the same rev range mean you don't press your foot down quite as hard to go the same speed. Ethanol's effect on octane is not considered--these are ratings that are seen at the pump. The European octane rating is RON, where as the US octane rating is an average of (RON+MON)/2.

Depending on the composition of the fuel, the MON of a modern gasoline will be about 8 to 10 points lower than the RON, however there is no direct link between RON and MON. The question is, would it be worth it?Sign up to our free daily newsletter, The Economist today,Published since September 1843 to take part in,Copyright © The Economist Newspaper Limited. The only difference is the temperature at which they ignite. [1] MON testing uses a similar test engine to that used in RON testing, but with a preheated fuel mixture, higher engine speed, and variable ignition timing to further stress the fuel's knock resistance. Note: There is no correlation between the fuel's octane rating and the mpg you get out of it.the difference is not 5-10, it's more like 3-4. So there is higher than 98 in Europe.WE EVEN HAVE 102 OCTANE AT THE ARAL GAS STATION HERE IN GERMANY, IT’S CALLED ULTIMATE ,In Luxembourg city area Station on route de longwy is an Aral with ultimate 102,so base on what you are saying i need to put the top gas in USA so i can have the base gas in EU because in USA you have lower regular gas so in the end EU have a better gas.OK. Some say yes more power, others no.I just want to point out in SOME vehicles, higher octane can get you better gas milage for example. Is this true or bullshit?What is race fuel then? As the meter clocks up dizzying dollar amounts, he looks longingly at the regular (87 octane) pump. Higher compression engines need higher octane fuel. In the United States and Canada, octane ratings are in AKI, commonly shown as "(R+M)/2".

It's a mix of hexanes, heptanes, and etc. © 2020 Pistonheads Holdco Limited, All Rights Reserved.US vs UK (or European) octane ratings ...Hi Steve, don't know if this helps but having a turbo car makes me wonder about these things too.EVO had a list of cars that actually benefitted from using Optimax and one of them was the LS1-engined HSV. View Profile View Forum Posts Private Message "time is running out" Join Date Dec 2004 Posts 571. Other than this, you can run an american car on european 95+ron fuel types without issues. A minimum 82 octane fuel is recommended for most vehicles produced since 1984. Octane was decided to be the "ideal" fuel so the octane rating is a measurement of the proportion of different hydrocarbons present (sort of. ( RON Octane Rating x 0.95 = AKI Octane Rating ) 98 RON Octane x 0.95 = 93.1 AKI Octane (US measure) 100 RON Octane x 0.95 = 95 AKI Octane (US measure) So, as you can see the 93 or 94 octane fuel we are all paying an arm and a leg for is actually quite comparable to the higher octane fuels found in Europe and Japan. Gelistet sind die Ratings der drei größten US-amerikanischen Ratingagenturen Standard & Poor’s, Moody’s und Fitch Ratings und als Alternative die Kreditratings der chinesischen Dagong Global Credit. I found that roughly add about 5 points in the US to make it similar to NZ octane rating, I know it's not exact but it's close enough .