You should  keep a record with all parts  receipts  and list the mileage and the 
date 
of any  service  work you perform.  See “Maintenance Record” in the 
Index. 
A CAUTION: 
You  can be injured if you  try to do  service  work  on  a vehicle 
without  knowing  enough  about it, 
Be sure  you have  sufficient  knowledge,  experience,  and the 
proper  replacement  parts and tools  before  you attempt 
any 
vehicle  maintenance  task. 
Be sure to use  the proper  nuts, bolts and  other  fasteners, 
“English”  and “metric” fasteners can  be  easily  confused.  If 
you  use  the wrong  fasteners,  parts can later  break  or fall 
off. 
You  could  be  hurt. 
NOTICE: 
If you try to do your  own service  work  without knowing  enough 
about  it, your  vehicle  could  be  damaged. 
Fuel  (Gasoline  Engine) 
If your vehicle  has a diesel  engine,  see “Diesel Fuel Requirements and  Fuel 
System” 
in this Section.  For vehicles  with gasoline  engines, please read this. 
Use  regular  unleaded  gasoline rated  at 87  octane  or higher.  It should meet 
specifications  ASTM  D48 
14 in the United States and CGSB 3.5-92 in 
Canada.  These  fuels should have the proper additives, so you should not 
have  to  add anything 
to the fuel. 
In  the United  States and Canada,  it’s easy  to be  sure 
you get the right kind 
of gasoline  (unleaded).  You’ll see UNLEADED right  on the pump. And 
only unleaded  nozzles  will 
fit into your vehicle’s filler neck. 
Be  sure  the posted  octane is at least 
87. If the  octane  is less than  87, you 
may  get a heavy  knocking  noise when  you drive.  If it’s  bad  enough, 
it can 
damage  your  engine. 
If you’re using fuel rated at  87  octane  or higher and you still hear  heavy 
knocking,  your  engine  needs service.  But don’t  worry 
if you hear  a  little 
pinging  noise when  you’re  accelerating  or driving  up a hill.  That’s  normal 
and  you  don’t have to  buy a higher  octane  fuel to get  rid 
of pinging. It’s  the 
heavy,  constant  knock that means  you have  a problem. 
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