diesel, another    
  one of earth's forbidden  
    liquids (tied strongly to   
   earth due to being made of oil   
                                
  (oil is the philosophers  
       stone, btw)      
                                  
                             ibis 
 so it's a                        
 fuel, right?                     
 we can  run generators and robot canines 
 and stuff  on this shit.  hard  to  find 
 due  to  half-assed  "attempts" to  stop 
 global  warming, but easy  to steal once 
 found  -  you  don't  even have  to hack 
 anything (might have to taste it though) 
                                          
 best  to   search  at  night,   roadside 
 trucks and lorries  are already emptied. 
 hidden vehicle  graveyards  out  in  the 
 desert  perhaps,  if the dragons  didn't 
 get   to  them  first.  people's  yards, 
 fenced   in.  those   towns  were   some 
 company   owned    (and   fenced    off, 
 important!) entire  parts  of it... they 
 would usually  have a fleet of vehicles.