Originally Posted by clean99
hi there i have a 99 1500 with the 5.2 (318) and was wondering how to increase my fuel mileage. i know doing an intake and exhaust will do wonders but is there more i can do like sparkplugs, wires, and coil? will that help or is that more of a money waster?
Well a multiple spark ignition will help with ensuring a complete burn. But without radically changing the engine there isn't much you can do. You have to increase the volumetric efficiency on this engine to get better mileage, especially since it sits in a heavy un-aerodynamic truck. I am sure Gen1Dak will come in a say something to argue against me but just my 2 cents here.