Abstract
Keywords: UE bio-fuel legislation, truck CI engines, renewable fuels, pollutant emissions.
This paper presents the results obtained from research activity, carried out to uses biodiesel fuel mixtures into direct injection turbocharged common trucks Diesel engines, in order to meet UE regulation. More research activities were develops in order to check the injection, fuel-air mixtures combustion parameters and engine emissions on engine fueled by classical Diesel fuel relative to mixtures of Diesel fuel and rapeseed oil ester. Engine durability was also a research goal.