The GD engine featured Economy with Superior Thermal Efficient Combustion (ESTEC) technology.

[1] Toyota claims they have a maximum thermal efficiency of 44 percent, "top class" at the time of introduction.

[3][4] The 1GD-FTV is a 2,755 cc (2.8 L) straight-4 common rail diesel engine with a variable nozzle turbocharger (VNT), chain drive and Intercooler.

[14] For marine application (Yanmar 4LV), the engine generates up to 250 hp (253 PS; 186 kW) at 3800 rpm.

[15] The 2GD-FTV is a 2,393 cc (2.4 L) straight-four common rail diesel engine with a variable nozzle turbocharger (VNT) and intercooler.