Sentences with phrase «octane rating»
The octane rating is a measure of how well fuel can resist "knocking" or "pinging" during combustion, which is when the air and fuel mixture explodes unevenly in the engine. Higher octane fuels have better resistance to knocking, ensuring that the engine runs smoothly and efficiently. Full definition
Unfortunately, the «flex fuel» vehicles sold can't take advantage of the high octane rating of E85, because the engines need to also burn regular gas.
autoline.tv
In the US, octane ratings in unleaded fuels can vary between 85 [22] and 87 AKI (91 — 92 RON) for regular, through 89 — 90 AKI (94 — 95 RON) for mid-grade (equivalent to European regular), up to 90 — 94 AKI (95 — 99 RON) for premium (European premium).
Currently, ethanol is blended into a gasoline blendstock formulated with lower octane rating... Read more →
Fuels of different octane ratings may have similar densities, but because switching to a higher octane fuel does not add more hydrocarbon content or oxygen, the engine can not develop more power.
Octane ratings tell you how long the fuel can withstand pressure without self - igniting, which is important to get right.
If the manufacturer considers RON 91 to be about Octane Rating 87, then RON 90 will likely be less than 87.
Since your vehicle requires Octane Rating 87 (which is probably (RON+MON) / 2) or RON 91, and your fuel choices are RON 90 and RON 95, then technically it is most likely that only RON 95 will meet the requirement.
@Paulster2: I bet you're at least half familiar with it: — RRB - The standard octane rating number used in the US is the average of the RON and the «motor octane number» (MON) which is measured under somewhat different conditions.
For instance, alcohol as fuel has a much better octane rating just because it cools the mixture significantly due to the extra amount of liquid being used.
Higher octane ratings correlate to higher activation energies: the amount of applied energy required to initiate combustion.
To identify the minimum octane rating of the gasoline recommended for your vehicle, please check the fuel sticker that is found on the inside of your fuel filler door.
The most common type of octane rating worldwide is the Research Octane Number (RON).
1980 The APC system protects the engine from injurious knocking due to uneven fuel quality and enables the engine to be run on petrol of various octane ratings.
Fast Facts: ENGINE Engine Type: 1LR - GSE Cylinders / arrangement: V10 Valve mechanism: 40 - valve DOHC Displacement (cc): 4,805 Bore x Stroke (mm): 88.0 x 79.0 Compression ratio: 12.0:1 Fuel Injection Type: EFI Octane Rating: 95 or higher Max.
Those gasolines are replacing leaded gasoline, which has the same octane rating.
Taking advantage of E85's favorable octane rating, the engine was calibrated to deliver a few extra horsepower, with the exhaust exiting through GM Performance Parts» new headers.
Octane ratings relate directly to a fuel's resistance to pre-ignition.
In addition, states have also had the right to implement their own fuel standards (such as octane rating and ethanol percentage).
Why are there no engines available in new cars that are optimized for the high - octane rated ethanol fuel E 85?
If the fuel you got was of a lower octane rating than that demanded by the engine's compression ratio and spark advance detonation could result and cause the types of failures previously discussed.
Ethanol has a much higher octane rating (about 109) than gasoline.
A diesel engine has an expansion ratio approaching 30:1 whereas a gasoline engine rarely can exceed 13:1 due to considerations of detonation with average fuel octane ratings.
To put it as simply as possible: octane ratings tell you when your gasoline is going to explode.
There are also many varieties of petrol, or gasoline, available for use in vehicles with different Octane ratings.
In relation to octane rating of fuel, the PCM retards ignition timing as needed to forestall detonation.
It replaces some other quite nasty additives to increase the octane rating of the gasoline.
Ethanol, an alcohol that can be made from corn, is now widely used as a gasoline additive due to its oxygen content and octane rating, or antiknock index.
«Some racing fuels today still use lead compounds for boosting the octane rating of the fuel,» said Mathur.
Just as a typical oil refiner cracks petroleum into a mixture of hydrocarbons ranging from ethane to jet fuel, Virent transforms sugars into a fuel that has a 102 octane rating.
These are clearly not great numbers, and with the Zed demanding an octane rating of 98 or above, petrol stations started to look frightening.
Octane rating is a representation of how much fuel can be compressed before before it explodes on it's own.
(Octane Rating 87 -LSB-...
(Octane Rating 87 [Research Octane Number 91] or higher)»
That advance is based on the octane rating the manufacturer specifies.
There are cases documented where is was illegally used to increase the octane rating of cheap fuel (google «Firepower ferrocene...
There are cases documented where is was illegally used to increase the octane rating of cheap fuel (google «Firepower ferrocene spark plugs»).
There are factors other than the octane rating that come into play with the question «which is better...» so I hesitate to get too far into that.
It has a high octane rating and excellent properties for spark - ignited internal combustion engines.
CAUSES Detonation is influenced by chamber design (shape, size, geometry, plug location), compression ratio, engine timing, mixture temperature, cylinder pressure and fuel octane rating.
Lower fuel octane: The ethanol in a gasoline blend provides some of the octane rating.