What is the difference between RON 95 and 97?
OK, we’re about to get technical; ’95/97/98 RON’ refers to the octane rating. This is a measure of how easily the fuel will ignite within the engine of a car. The higher the octane rating is, the harder it is for the fuel to ignite because the fuel requires greater compression in order to do so.
During summer 2021, the standard (95 octane) petrol grade in Great Britain will become E10. The change in fuel applies to petrol only. Diesel fuel will not be changing. Almost all (95%) petrol-powered vehicles on the road today can use E10 petrol and all cars built since 2011 are compatible.
In the UK, standard unleaded petrol gets a RON of 95, while for higher grade petrol this rises to 98 RON or, among top of the range offerings from certain petrol companies, a RON of 102.
Premium unleaded is both 95 and 98. The ethanol-blended E10 (a mixture of up to 10 per cent ethanol in petrol) is a substitute for 91 in most cars 2005ish or newer. However, it pays to check your user manual. Those numbers – 91, 95 and 98 – are the so-called ‘octane rating’ of the fuel.
A short answer – it will not. Usually, any commercially available gasoline that passes industry standards would suffice for almost any gasoline-powered vehicle. Putting a higher-octane petrol into your car will neither help nor hurt your car’s performance despite the variations among engines.
The standard rating for petrol in the UK is 95 octane, and every car sold in the UK has its electronics tuned so that it can run properly on this fuel. In some foreign countries, you can get lower octane rated fuels, but if you add these to your car, it may cause ‘knocking’.
Research Octane Number
Research Octane Number – RON The octane number indicates the “knock resistance” of the fuel. It is determined in line with the RON (Research Octane Number) under defined conditions with precisely defined test engines.
According to writer Kelvin Ang from carreviewsncare.com, using RON97 for your vehicle does not necessarily gives you more mileage or better engine performance because the amount of mileage you will get depends on the traffic conditions, the way the driver drives and what type of vehicles they drive.
RON is the octane measure used globally and it’s more efficient to produce and certify. 95 RON is roughly equivalent to 91-octane on the anti-knock index currently used in the United States.
Can I mix RON95 and RON97? There will not be any detrimental effect to your motor vehicle as long as the fuels meet or exceed the minimum RON required by the engine. Due to the difference in density, the fuels may not completely mix immediately.
The main difference between Ron 97 and Ron 95 is resistance to knocking. Ron 97 can withstand the higher pressures in a high-performance engine and therefore produce no knocking. Even so, Ron 95 is still a good fuel but it will produce knocking if your engine is powerful.