| Fuel Mileage tracking I have a 2005 LLY crew 2WD...bought it with 8K miles about 6 month ago.......have tracked mileage to about 15.2 city and around town, towing 6K double axle box.....@ 12.4 and unloaded highway about `18.3. have changed oil ...with Rotella petrolium based..and built a history at 18500 total miles. Now that I have a based line ...considering the air intake mods from killer bee and going with Amsoil thru the drive train. maybe a big oil cooler and minor tune....but nothing radicle.......any thoughts or suggestions? |