Here is my real world numbers. 2012 F 350 Lariat and Voltage 3305 Toyhauler. Left Calgary Alberta July 5 to Cape Breton Island . Trip was 5057 km and used 1185.9 l of diesel. Trailer was 14,300 leaving, weighed.
Return was 5092 km and 1204 l diesel used. 15,970 trailer leaving .
I know units are different but my Wallet O Meter checked in at $2270 CDN for diesel.
IMO that was awesome considering Northern Ontario is half of Canada.
I think it worked to 10.8 mpg.................. still smiling after a month vacation with kids and family using combo for intended purposes.
returned Aug 2.
Glad to have put the Sailuns on the trailer a month prior. LTX Defenders going on truck tomorrow for replacing the OEM.
Saw lots of nice combos each day and I bet each one with given weight, height, wind, etc, was within 1 mpg of the other!
happy camping PS Thunder Bay was awesome!!!!