The introduction of the three way catalyst (TWC) has considerably reduced emissions from gasoline fueled cars. Most of the pollutants from these cars are emitted during the cold start period. At lower ...

All vehicles become less efficient in cold weather. In a recent study, researchers in freezing Finland focused on whether engine block heaters could help increase efficiency in internal-combustion ...

Ever wondered how we work out which heaters are truly hot stuff? You’re in the right place. Here’s your behind-the-scenes look at how we test every model , from the big names to the unexpected gems, ...