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.