improperly inflated tires will decrease fuel mileage, too. If he's hauling more passengers or cargo than normal or heavier passengers it will cause a loss of mileage, too. Check the wear pattern on the tires, too. Alignment issues will rob MPG.
 WTH JUST HAPPENED?
 
					
					
						WTH JUST HAPPENED?
					
					
                                        
					
					
						improperly inflated tires will decrease fuel mileage, too. If he's hauling more passengers or cargo than normal or heavier passengers it will cause a loss of mileage, too. Check the wear pattern on the tires, too. Alignment issues will rob MPG.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709