The 2026 Toyota Prius leads hybrid fuel economy at 57 mpg combined, beating rivals with 5th-gen Toyota Hybrid System ...

Smaller, more powerful and fuel-efficient engines don’t seem to have great long term reliability. Engine recalls from major automakers such as GM, Toyota and Honda have cost billions of dollars. Moves ...

Mazda’s SKYACTIV-Z tech could change the way automakers and drivers look at gas-powered engines amid today’s significant EV investment push. Expert engineer Masahisa Yamakawa at Mazda said that heat ...

Most drivers think about fuel economy in terms of engine size, tire pressure, or driving habits, but vehicle weight also plays an important role. Every additional pound requires energy to move, which ...

On a list dominated by small cars, the midsize 2025 Honda Accord is an impressive outlier. A highway mpg rating of 37 means this sedan, with generous legroom and trunk space greater than its class ...

In case you missed it, the automotive industry has been on a steady trajectory of internal combustion engine (ICE) downsizing for years. Battery-powered electric vehicles may capture most of the ...

The days of internal combustion engines are numbered. Unfortunately, the exact number is constantly shifting, with regulators moving the goalposts so often that manufacturers are left scrambling to ...

Combustion efficiency in internal combustion engines refers to the proportion of chemical energy in the fuel that is converted into useful mechanical work. Attaining high combustion efficiency is ...