Almost half of the power produced by gasoline engines is lost to waste heat. This heat is lost in two ways: through exhaust gases, which carry half of the heat away, and the remaining half is lost to the atmosphere. In addition, some work is lost through friction, air, and noise, which leaves only twenty to thirty percent of the energy available for work.
Carbon fuels contain sulfur and impurities.
In a typical internal combustion engine, sulfur and impurities can cause many problems. These impurities cause pollution by contributing to nitrogen oxide and volatile organic compounds. These compounds are also harmful to the environment. They are also a significant contributor to acid rain.

The combustion process of fossil fuels produces CO2, which is an inevitable waste product. CO2 is the product of incomplete combustion and the primary air pollution source. The amount of CO2 released from the combustion of fossil fuels depends on their composition, with some fuels being more polluting than others. Fortunately, technology can minimize these waste products.
Low boiling point fuels contain impurities.
Impurities in fuels with low boiling points can significantly reduce the energy retrieved. Benzene and 1,3-butadiene are examples of contaminants. For example, a compound with a boiling point of 400 degC at 1 atm would be boiled at 145 deg C when under 0.1 mm of external pressure.

Diethyl Ether has a density of 0.838 kg per liter.
Diethyl ether is a colorless, sweet-smelling, highly volatile, and flammable liquid. It was once used as a general anesthetic until the development of non-flammable drugs. Today, it is used recreationally in some countries. It is produced when a protonated ethanol molecule reacts with an atom of hydrogen (atomic number one).
To calculate the density of diethyl ether, use the mcf or vcf formula. This conversion factor converts mass in kilograms to cubic meters. Gasoline has a thickness of 750 kg/m3.

Although DME is heavier than gasoline, it is lighter than air, so it is suitable for internal combustion engines. Moreover, it is less dense and has a low calorific value. It also requires engine modifications to accommodate its low density and lower heating value.
Diethyl ether has a density of 0.838 kg/L in an internal combustion engine. It has lower volumetric energy than gasoline and is considered more efficient for various applications. It can reduce the number of nitrogen oxides released into the air. These nitrogen oxides are hazardous to plants and animals and cause the production of ozone, a secondary air pollutant. Although stratospheric ozone benefits humans and the environment, ground-level ozone is highly harmful.