Ecotec (capitalized ECOTEC, from 'Emissions Control Optimization TEChnology') is a General Motors (GM) trademark that refers to a series of emissions technologies that were implemented throughout a range of GM engines. ECOTEC can refer to the following diesel and petrol engines produced by General Motors:
Ecotec Family 0 - straight-four DOHC engines produced by Adam Opel AG and GM Powertrain US.
Ecotec Family 1 - straight-four SOHC/DOHC engines produced by Adam Opel AG, GM Korea, and GM do Brasil.
Ecotec Family II - straight-four SOHC/DOHC engines produced by Adam Opel AG, Holden, and GM do Brasil.
Ecotec L850 - straight-four all-aluminium DOHC engines produced by Adam Opel AG, GM Powertrain US, and Saab.
Ecotec V6 - a version of the Series II 3800 V6 engine, produced by the Holden Engine Company between 1995 and 2004.
CDTI (Common Rail Diesel Turbo Intercooled) Ecotec - common rail diesel engines for Opel/Vauxhall cars:
originally designed and produced by Fiat (MultiJet) and currently produced by Adam Opel AG;
produced by Isuzu (Circle L).
VCDi Ecotec - common rail diesel engines for Chevrolet and Holden cars, produced by GM Korea (a licensed VM Motori RA 420 SOHC and Family Z).
DTI (Diesel Turbo Intercooled) Ecotec - diesel engines for use in Opel/Vauxhall cars, produced by Isuzu (Circle L)
SIDI (Spark Ignition Direct Injection) Ecotec - petrol Medium Gasoline Engine produced by Adam Opel AG
Ecotec3 is the name used on General Motors' Small Block Gen 5 Engines. All include direct injection, cylinder deactivation and continuously variable valve timing, either in V6 form of 4.3L or V8 form of either 5.3 or 6.2 liters.
