ORTHO yo

Orthos

i tried matching them up the best i could, but we should still look for some more references

blue pen..

Diesel/Gasoline engine

http://www.popsci.com/cars/article/2009-08/researchers-discover-fuel-effciency-boost

People who take old class*8 trucks for their "RV" lifestyle.

http://rvnow.rvtravel.com/2008/10/tour-inside-of-rv-like-semi-truck.html

This dude breaks it down...

http://www.lifeasatrucker.com/truckers-life.html