What Are The Major Exhaust Emissions From An Engine?
by FTE Published on Friday, February 6th, 2026
What are the major exhaust emissions from an engine? Understand what’s in your exhaust?
Exhaust emissions mainly include carbon dioxide (CO2), nitrogen oxides (NOX), hydrocarbons (HC), and particulates.
CO2 is linked to fuel consumption, while NOx and particulates contribute to air pollution.
Modern engines must meet strict regulations like Euro 6, which limits NOx to 80 mg/km for diesels and particulate emissions to 4.5 mg/km. Found this useful?
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