RV Fuel Issues & Prices - Post 'Em Here!

tomman58 wrote:

dannydimitt wrote:
Ok I give up ! Been operating diesel equipment , cross country tractor trailers , Cats , Cummings , Detroits , Mercedes , Case,International, John Deere , Perkins , Murphy, Etc all my life and have never heard of def . What is it ?

All your stuff must be older. DEF became mandatory a few years ago. It is an additive that goes into the exhaust to help reduce emissions. ie: Diesel Exhaust Fluid.
Normally I go through about 3 gallons or so every 5000 miles when towing. Separate tank for this stuff also. The big boys have it at the pump in their fueling centers.

I guess that's another good reason to stick with my 03 Cummins :)