New memeber! MPG w/ camper on truck?

I am a new member but a long time visitor to TacomaWorld.
I was wonder what MPG do you guys get with a camper on your truck?
I get about 19-21 MPG.

 

Welcome to TacomaWorld.

What flavor is your truck? (engine transmission etc)

 

Yesterday I did a roundtrip of almost 300miles from the US Border to Monterrey, MX... 13.8 MPG , on my way south there was a 30MPH south wind, on my way back we were 4 more adults on the truck, two in the camper and four inside the cab, plus like 200lbs of baggage. I have a Double Cab 4x4 Long Bed. everything is stock and NO secondary filter has been removed. Before I start the trip I fill out the gas tank with 18 Gal of $3.24 Super-unleaded gas, BUT... no nice results!

This numbers were provided by my recently purchased and installed Scangauge.

Speed was between 75MPH and 80MPH. Nice toll way.

 

Sorry about that guys! I'm still learning the roots of TW. Thanks for the help Phantom. In general I was curious to see what mileage either automatic or manual transmission get with a camper?

 

This is an update for my last report, finally with a cap and almost 600-700#'s (people and outdoors gear), 25.5 peak, 21.5 MPG on our way to our destination (80 miles) and 22.1 on our way back. Reason... incorrect Scangauge setup and better driving, even with tires at below 29 PSI. A LOT MORE POSITIVE THAN THE 13.8MPG.