What does JTS mean in Alfa Romeo?
The JTS engine (Jet Thrust Stoichiometric) is a gasoline direct injection engine produced by Alfa Romeo. It exists in two forms, straight-4 and V6, and was introduced into the Alfa lineup in 2002. These Alfa Romeo 159 JTDm engines proved to be the most reliable of the entire range, offering an excellent combination of economy (5. More power was provided by the 2. JTDm with a choice of 200 or 210 hp, but it was more prone to problems with the turbocharger and common rail injection.