Introduction The Lexus 2AR-FSE was a 2.5-litre inline four-cylinder petrol engine. Based on Toyota’s 2AR-FE engine, the 2AR-FSE differed in that it had: Atkinson cycle operation; Direct fuel injection (in addition to conventional port injection); and, A unique cylinder head, camshafts, pistons and fuel supply system. According to Lexus, the 2AR-FSE engine achieved thermal efficiency […]
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