The 2E-engined versions were carburetted and produce . The engines were originally carburetted, and either naturally aspirated or turbocharged (with intercooler). SOHC inline-six, either carburetted or fuel injected. Petrol engines include a carburetted 2.0 litre inline-four or a 2.6-litre ditto with . Dr Henry analyzed the composition and investigated the properties of carburetted hydrogen gas (i.e. methane). In 1875 Thaddeus S. C. Lowe invented the carburetted water gas process. The engine used is either Mitsubishi's carburetted 4G17 or the bigger fuel injected 4G15. The engine was available in both carburetted and fuel-injected forms. The 318 was a mid-range model that was powered by a carburetted four-cylinder engine. Pakistani production began in 2000 utilizing the old carburetted "F10A" four-cylinder engine. It was sold in both carburetted and MPFI form. According to Alfa Romeo engine output and performance were unchanged from the carburetted version. Some are carburetted, usually the smaller engines. This engine was carburetted unlike the US market G13BA engine. Power is for the carburetted versions, for the fuel injected ones.