what is the chemical difference between gas and diesel?
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Gasoline contains compounds with carbon chains containing a certain amount of carbon atoms; their formulas are typically in the range of C7H16 to C11H24. Diesel fuel, on the other hand, has carbon chains somewhere in the area of C13 to C18.
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Petrol and diesel engines operate using the same principle, but the difference lies in the spark plug. Diesel engines don't have any. The main difference between diesel and petrol engines is that petrol engines use spark plugs to ignite the air-fuel mixture, while diesel engines rely solely on heavily compressed air.
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Pros of diesel Financial: diesel engines are more efficient and use 15−20% less fuel meaning cheaper running costs. ... For newer diesel cars though, tax is typically higher than for petrol. Driving experience: diesel cars offer more low-speed torque which means they have better overtaking power and towing ability.
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Diesel fuel is heavier and less volatile than gasoline, which makes it simpler to refine from crude oil. As a result, diesel tends to be cheaper than gasoline in most countries around the world. ... For example in the USA the federal excise tax on gasoline is 18.4 cents per gallon and 24.4 cents per gallon for diesel fuel.
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Marine Gasoil (MGO) ... Marine gasoil is similar to diesel fuel, but has a higher density. Unlike heavy fuel oil (HFO), marine gasoil does not have to be heated during storage. Marine gasoil and standard heating oil largely share the same properties.
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Generally less easily. Diesel vehicles naturally have more toque than petrol engines do. This therefore means that they are less likely to stall when taking off at the lights etc than a petrol engine. Petrol engines though can naturally take off faster than diesels though.
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Therein lies the first major difference between the oils. Diesel engine oils have a higher anti-wear (AW) load in the form of zinc dialkyldithiophosphate (ZDDP). The catalytic converters in diesel systems are designed to be able to deal with this problem, while the gasoline systems are not.
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Petroleum-derived diesel is composed of about 75% saturated hydrocarbons (primarily paraffins including n, iso, and cycloparaffins), and 25% aromatic hydrocarbons (including naphthalenes and alkylbenzenes). The average chemical formula for common diesel fuel is C12H24, ranging approximately from C10H20 to C15H28.
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Gas oil is a term for heavy diesel fuels. Gasoline is the correct term for the fuel commonly used in a spark ignition engine.
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The calorific value of diesel fuel is roughly 45.5 MJ/kg (megajoules per kilogram), slightly lower than petrol which is 45.8 MJ/kg. However, diesel fuel is denser than petrol and contains about 15% more energy by volume (roughly 36.9 MJ/litre compared to 33.7 MJ/litre).
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In a gasoline engine, fuel is mixed with air, compressed by pistons and ignited by sparks from spark plugs. In a diesel engine, however, the air is compressed first, and then the fuel is injected.
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Gas/Petrol (gasoline) is just one type of fuel. It's like this... all gasoline is fuel, but not all fuel is gasoline. "Oil" is a substance that when refined can yield various types of fuel as well as other substances. "Oil" is also a term for the highly refined product that is used to lubricate machinery.
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Diesel contains more carbon than petrol but carbon dioxide (CO2) emissions of diesels tend to be lower. So by giving motorists incentives to buy more diesel than petrol cars the EU hoped this would help to reduce greenhouse gas emissions. ... The tax on diesel fuel is also lower than petrol.
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The main difference between petrol/diesel and hybrid cars is pretty simple. While conventional vehicles are powered by either petrol or a diesel motor alone, hybrid cars have an electric motor as well. That electric motor works either alone or alongside the internal combustion engine to power the vehicle.
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It used to be that truck diesel fuels and marine diesel fuels were all the same. ... More sulfur in marine diesel meant better resistance of microbes in storage and improved lubricity of marine diesel fuel. Those days are coming to an end. They may already be gone in some areas of the country.
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Fuel costs: On average, diesel engines are rated about 25% more fuel efficient than similarly sized and power rated gasoline engines. Currently, diesel fuel is about 20% more expensive than gasoline, but prices are volatile and in some Canadian markets, diesel is actually slightly cheaper than gasoline.
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2 diesel fuel oil are almost the same thing (diesel is different in that it also has a cetane number limit which describes the ignition quality of the fuel). Distillate fuel oils are distilled from crude oil. Gas oil refers to the process of distillation.