[demoncleaner]

Auto will do better on the freeway and in traffic cause its geared higher. Notice the 1st and 6th of the manual are very low. But in hilly country areas without much traffic (avg 30-65 mph) I just filled up at nearly 20 mpg. I'd buy the manual again.

An exhaust system will not really change your mpg. It WILL change the rpm where you best MPG is found though. With my TRD, I gained 1 mpg on the freeway at 70-75 mph where rpms are at 25-2600 rpms. But I lost 1 mpg at slower speeds when cruising around 2000 rpms or less. Net of it... I get the same mpg, with better sound.

Clutch start cancel is for offroad. You can start in gear to ease up a nasty section, rather than brun the clutch or roll back and lose your footing (think (hillclimb). Also good for when you want to start the truck and get some heat going with your ski boots on!