Ongoing use of 98-octane fuel, with the increase in cleaning agents, will help to reduce carbon build-up on the engine's valves and injectors.
Hi Octane Octane Boost & Clean aids in cleaning fuel injectors and the combustion chamber, and restores engine efficiency.
Even using Shell V-Power 98 every second or third fill will have a positive cleaning impact on your engine and help to keep it running more efficiently.
Fuels such as 95 or 98 RON (octane rating number) have a higher resistance to burn which indicates higher levels of energy available for the vehicle's engine.
No problem with putting 95 or even 98 in a car designed for 91 – except generally you will be wasting money. Higher octane fuels don't contain more energy. Octane rating is basically resistance to burning under pressure, allowing higher compression ratios to be used (cylinder pressures, actually).
Depending on the car you own, fuelling up with 98 octane can result in increased performance that will see you produce a little extra power when compared to lower octane petrol. But if you're driving something older that hasn't been tuned to run on high-octane, you'll likely see no tangible benefit.
Many cars will print an advisory label on the inside of the fuel filler cap that notes the minimum fuel quality required by the engine, and while it's not recommended to go lower, is there any risk to going higher? Bottom line, no. There is no risk when putting higher-octane fuel in your petrol car.
Today's premium fuels contain additives and detergents that help clean fuel injectors and remove carbon deposits inside of engines, thus, incentivizing motorist with engines that use regular fuel to, on occasion, use premium gas to clean their engines.
Mixing the grades to get 91 or so shouldn't hurt, but it probably isn't saving you much money. Using anything higher than your manual recommends probably won't help your car's performance – but using lower might save you a few bucks, Leroux says. If you notice knocking, you should switch back.
Premium petrol can also help to reduce friction, resulting in cleaner engine components and a more efficient performance. Older vehicles in particular might benefit from additional cleaning with premium fuels – using premium petrol for a couple of full tanks can create a cleaner, more efficiently running engine.
In a nutshell, premium fuel is in fact chemically superior. Octane levels and lubrication aside, premium fuel has the ultimate benefit that is claimed by all the leading brands; it cleans your engine. Cheaper fuels are apparently prone to early ignition in the engine, causing damage and residue in crucial components.
Whether a conscious decision or not, construction and excavation companies burn the cleanest fossil fuel: diesel.
Mixing the 95 and 98 octane fuels will not cause any problems.
As mentioned earlier, when the injectors become clogged, they lose their ability to supply the necessary amount of fuel or create a proper spray pattern, but worse yet, the corrosive nature of carbon deposits literally destroys fuel injectors over time.
Experts blame the excess alcohol and additives in most gasoline products because they cause premature failure of fuel injectors.
Premium, 98 Unleaded Petrol
Otherwise known as Ultra-Premium by some brands, 98 is the highest-octane fuel currently available in Australia. Unleaded 98 provides higher engine power and overall performance in comparison to 91 and 95. It is also responsible for less pollution, according to providers.
98 petrol can withstand this, allowing the engine to extract the maximum amount of power from the fuel and run at top power. If you used 95 petrol instead, it would explode too quickly under the pressure.
bp Ultimate Unleaded is our most advanced performance petrol with a minimum octane number of 98 and an innovative formulation that cleans away the harmful dirt in your engine and helps stop it coming back.
Royal Purple Max Atomizer Fuel Injector Cleaner is specifically designed to treat these engines' fuel injectors. It also maximizes horsepower and won't cause any damage to emissions systems.
Generally, we recommend that you clean your injectors every 15,000 miles. However, you could undoubtedly do it less frequently: about every 30,00 miles or once a year. You may also want to be careful about the gas you put into the vehicle and always check its quality beforehand.
The higher the rating, the more tolerant of high compression. High octane fuels don't burn hotter.
Well, it depends. With better fuel efficiency through controlled combustion, less 98-Octane fuel is used as there is less fuel being wasted during incomplete combustion. Thus, this increases the mileage between pumps. This saves petrol costs over time, ideal for long term car rental customers.
Sometimes referred to as Ultra Premium unleaded petrol (UPULP), premium 98-octane fuel is the highest octane unleaded fuel, providing higher engine power and performance as well as less pollution, according to providers.