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.