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.