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Petrol vs. LPG — What's the Difference?

By Tayyaba Rehman — Published on November 24, 2023
Petrol is a liquid fuel derived from crude oil for internal combustion engines, while LPG (Liquefied Petroleum Gas) is a gas under pressure used for heating, cooking, and vehicles.
Petrol vs. LPG — What's the Difference?

Difference Between Petrol and LPG

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Key Differences

Petrol, commonly known in American English as gasoline, is a highly flammable liquid. It is primarily used to fuel internal combustion engines, such as those found in cars and motorcycles. LPG, on the other hand, stands for Liquefied Petroleum Gas and is a mixture of propane and butane gases stored under pressure to keep it in a liquid state.
Tayyaba Rehman
Nov 24, 2023
Petrol is extracted from crude oil through the refining process, where it is separated from other components like diesel, kerosene, and lubricating oil. LPG is often a byproduct of this refining process but can also be produced during the natural gas extraction process.
Tayyaba Rehman
Nov 24, 2023
The main applications of petrol revolve around transportation, powering vehicles with spark-ignited engines. LPG, in contrast, has broader uses. In residential contexts, LPG is often used for cooking and heating. It's also utilized as a fuel for certain vehicles, particularly in regions where petrol prices are high.
Tayyaba Rehman
Nov 24, 2023
Petrol is usually stored in underground tanks at gas stations and is dispensed into vehicles through pumps. LPG, due to its gaseous nature, is stored in pressurized cylinders or tanks. When used as vehicle fuel, LPG requires a different kind of fueling system and engine modifications compared to petrol.
Tayyaba Rehman
Nov 24, 2023

Comparison Chart

Form

Liquid
Gas (liquid under pressure)
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Nov 24, 2023
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Composition

Refined crude oil
Propane and butane mixture
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Nov 24, 2023

Primary Use

Vehicle fuel
Heating, cooking, vehicle fuel
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Nov 24, 2023

Storage

Underground tanks
Pressurized cylinders/tanks
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Nov 24, 2023

Byproduct of

Crude oil refining
Oil refining and natural gas processing
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Nov 24, 2023

Compare with Definitions

Petrol

A liquid fuel for combustion engines.
She filled her car's tank with petrol before the trip.
Tayyaba Rehman
Oct 16, 2023

LPG

A mixture of propane and butane.
LPG burners produce a blue flame, indicating complete combustion.
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Oct 16, 2023

Petrol

Primary fuel for spark-ignition engines.
Petrol engines are known for their immediate acceleration.
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Oct 16, 2023

LPG

Stands for Liquefied Petroleum Gas.
Many households use LPG for cooking purposes.
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Oct 16, 2023

Petrol

Refined product from crude oil.
The price of petrol is influenced by global oil markets.
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Oct 16, 2023

LPG

Often a byproduct of oil refining.
LPG production increases when refineries process more crude oil.
Tayyaba Rehman
Oct 16, 2023

Petrol

Known as gasoline in the U.S.
In Europe, it's called petrol, but in the U.S., it's gasoline.
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Oct 16, 2023

LPG

Stored in pressurized containers.
Handle LPG cylinders with care to prevent leaks.
Tayyaba Rehman
Oct 16, 2023

Petrol

Stored in underground tanks at stations.
The petrol station near my home offers competitive prices.
Tayyaba Rehman
Oct 16, 2023

LPG

Used in vehicles, heating, and cooking.
With the right modifications, cars can run on LPG.
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Oct 16, 2023

Petrol

Gasoline.
Tayyaba Rehman
Oct 04, 2023

Petrol

Petroleum, a fluid consisting of a mixture of refined petroleum hydrocarbons, primarily consisting of octane, commonly used as a motor fuel.
Tayyaba Rehman
Oct 04, 2023

Petrol

(informal) A motor vehicle powered by petrol (as opposed to diesel).
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Oct 04, 2023

Petrol

Petroleum.
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Oct 04, 2023

Petrol

A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
Tayyaba Rehman
Oct 04, 2023

Common Curiosities

Can cars run on both petrol and LPG?

Some cars can be modified to run on both fuels with a dual-fuel system.
Tayyaba Rehman
Nov 24, 2023

Which is more environmentally friendly: petrol or LPG?

LPG generally produces fewer emissions than petrol, making it more eco-friendly.
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Nov 24, 2023

What are the primary components of LPG?

LPG primarily consists of propane and butane.
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Nov 24, 2023

Is petrol a renewable resource?

No, petrol is derived from crude oil, which is non-renewable.
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Nov 24, 2023

Can LPG be used in all vehicles?

Not all vehicles can use LPG; they require specific modifications or systems.
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Nov 24, 2023

Why is LPG stored under pressure?

LPG is stored under pressure to keep it in a liquid state, making it easier to transport and use.
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Nov 24, 2023

How is petrol stored at gas stations?

Petrol is stored in underground tanks at gas stations.
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Nov 24, 2023

Are petrol engines different from LPG engines?

The basic engine can be the same, but fuel delivery systems and tuning may differ.
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Nov 24, 2023

Is petrol the same as gasoline?

Yes, petrol is known as gasoline in American English.
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Nov 24, 2023

What happens if LPG leaks?

LPG is heavier than air, so it can pool in low areas and pose explosion risks.
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Nov 24, 2023

Why is LPG sometimes preferred for indoor use?

LPG produces fewer indoor pollutants compared to other fuels.
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Nov 24, 2023

Can petrol and LPG be mixed?

No, they have different properties and require separate storage and delivery systems.
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Nov 24, 2023

What's the octane rating of petrol?

The octane rating of petrol varies but typically ranges from 87 to 93 in the U.S.
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Nov 24, 2023

Which fuel is more energy-dense: petrol or LPG?

Petrol is more energy-dense than LPG.
Tayyaba Rehman
Nov 24, 2023

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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