Why Are Diesel Engines Noisier Than Gasoline Engines?

DODGE CUMMINSAs explored in our other blogs, diesel engines work differently than gasoline engines. As a result, diesel engines have unique quirks and needs that gasoline engines do not have. One such quirk is the extra noise a diesel engine makes in comparison to their gas-fueled counterparts. Read on for EngineTech’s explanation of this phenomenon.


Diesel fuel is denser and contains more potential power than gasoline, but this contributes to its noise issue. Explosions of diesel fuel are more powerful and create excessive vibrations– resulting in extra decibels.


Gasoline engines rely on a spark to explode their fuel, which drives their motion. Diesel uses pressure instead, as the fuel can be ignited by sheer compression. This high compression ratio creates more powerful vibrations than a traditional spark-ignited gas engines. These vibrations cause more noise.


The big secret behind “diesel noise?” It’s not nearly the problem it once was. Better manufacturing standards and sophisticated technology have all led to quieter diesel engines than ever before. Consumer comfort has become paramount in the vehicle manufacturing industry, so expect diesel engines to become quieter as their sales remain steady.

Are you considering diesel powered vehicles or equipment, but you are wary due to their excessive noise? Contact or visit EngineTech today and our diesel experts can put your mind at ease. Between the benefits of diesel engines and their improving technology, we can find a solution that meets your needs!