The QG engine is a , , and straight-4 piston engine from Nissan. It is a lean-burn aluminum DOHC 4-valve design with variable valve timing and optional NEO Di direct injection. The QG engines were designed by Nissan's Aichi Kikai division in Japan. Nissan websites state the QG as standing for "Quality and Green". QG13DE The QG13DE is a DOHC 16-valve with 4-cylinder. It produces at 6000 rpm and at 4400 rpm. Bore x Stroke= It is used in the following vehicles: 1999- Nissan Wingroad/ADVAN Y11 Series 1998- Nissan Sunny 2005- Nissan Sentra N16 series for low-end models (Philippines) QG15DE Water-cooled straight 4 cylinder engine with capacity and DOHC control. Bore and stroke are . Output is at 5600 rpm and at 2800 rpm and later at 6000 rpm and at 4400 rpm. This engine is used in: Nissan sunny Samsung SM3 Nissan Tiida Power outputs for N16 Almera: '00-'02: 90ps '02-'06: 98ps QG16DE The QG16DE is a straight 4-cylinder engine with Double Over Head Camshafts with 16 valves. The cylinder head also features Nissan Variable Cam Timing (N-VCT) and micro-polished camshafts. A new water pump assembly has been designed for the QG16DE; the design is based on the water pump from the GA16DE, the changes made it more efficient and reliable than its predecessor. The engine produces at 6000 rpm and at 4000 rpm. Bore and stroke is . Specifications Displacement - Layout - DOHC Inline-4 (Straight-4) with Nissan Variable Cam Timing Valves - 16, 4 for each cylinder Power - at 6000 rpm Torque - at 4000 rpm Redline - 6500 rpm Fuel Delivery System - Electronic fuel injection (EFI) Ignition system - 4 coils, 1 for each cylinder Fuel Compression Ratio - 9.5:1 It is used in the following vehicles: Nissan Sunny NEO with 5-speed manual or 4-speed automatic transmission Nissan Sunny N16 series sold in Sri Lanka Nissan Primera (P11.144) 2000-2002 Nissan Primera (P12) edition sold in various countries across Europe Nissan Sentra N16 series in the Philippines and the N16 series Pulsar sold in Australia and New Zealand Renault Scala sold in Mexico and Colombia Nissan Almera sold in South Africa QG18DD The 1.8 L QG18DD produces at 6000 rpm and at 2800 rpm. It is used in the following vehicles: 1999-2004 Nissan Sunny QG18DE The QG18DE was designed for Nissan by Aichi Machine Industry, Japan. It is manufactured both in Japan and the Mexican