20mpg average possible?

[Deephaven]

My truck may or may not be able to, I'll never know since there is no way in hell this driver could.

 

[redeknightjr]

I have a 2000 LT new body style.....it has just over 200,000 miles ...K&N cold air intake and super 40 muffler are the only mods Ive done for performance. I do use super unleaded. I have consistently been getting about 370-395 miles to a tank 80% highway. I think that is pretty good

 

[Nashoba]

Hey, redeknightjr. Howis the internal resonance with the super 40s? I have a nice exhaust on my 2011 Silverado but the '08 Tahoe Hybrid is still stock exhaust. It is still pretty quiet. I wonder if it will be rather odd to run up to 20 mph and then have the engine start with a blast? Might be kinda cool.

 

[redeknightjr]

Nashoba.....with the side exit it is not bad at all....conversation is not hindered at all