This mod adds a 5.5-litre V-8 with Gavril's Fuel Saver Technology, which shuts off 4 of the engine's 8 cylinders while cruising to save fuel. Activation of the system requires that the 6-speed transmission is in 4th gear or higher, and the accelerator pedal depressed less than 20%. A UI message will confirm that the system is active. The system automatically activates all 8 cylinders if the transmission shifts out of 4th gear or the accelerator is depressed more than 45%. The cruise control and this mod may quarrel at certain speeds, and the engine may go in and out of fuel saver mode. Drive manually if this happens.