Page 283 of 488

When to Add Oil 
If the  oil  is  at  or below  the ADD mark, then you’ll  need to add  some oil. But 
you must use the right  kind.  This part explains  what kind  of oil  to use.  For 
crankcase  capacity,  see  ”Capacities  and Specifications” 
in the Index. 
NOTICE: 
Don’t  add  too  much  oil. If your engine  has so much oil that  the 
oil  level  gets  above  the  upper 
mark that  shows  the  proper 
operating  range,  your  engine  could  be  damaged. 
The  engine  oil filler  cap  is located  on the  driver’s  side  engine  valve cover. 
Just  fill 
it enough  to  put the level  somewhere in the proper  operating range. 
Push the  dipstick all the way back 
in when  you’re  through. 
What Kind of Oil to Use 
Oils of the proper  quality  for  your vehicle can  be identified  by looking  for 
the  “Starburst”  symbol.  The  “Starburst”  symbol indicates that the  oil has 
been  certified  by the American  Petroleum  Institute 
(API), and is prefenced 
for  use  in your  gasoline  engine. 
If 
you change  your  own oil, be sure you  use oil that has the “Starburst” 
symbol  on the  front 
of the oil container.  If  you have your oil changed  for 
you,  be sure  the 
oil put  into  your  engine  is American  Petroleum Institute 
certified  for  gasoline  engines. 
6- 17 
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        Page 288 of 488
To Check  Engine Oil 
Pull out the dipstick  and  clean it with  a paper towel or a cloth,  then push it 
back  in  all the way. Remove it again, keeping the tip  down. 
When to Add Oil 
If the oil is at or below the ADD line, then you’ll need to add  some oil. But 
you must use  the  right kind. This part explains what  kind of oil to use. For 
crankcase  capacity, see “Capacities  and Specifications” 
in the Index. 
I I 
I NOTICE: I 
Don’t  add  too  much  oil. If your  engine  has so much  oil  that  the 
oil level  gets  above  the  proper  operating  range,  your  engine 
could  be damaged. 
I I 
The  engine oil filler  cap  is  located on a filler  tube  at  the front of the engine. 
Just  fill  it 
enough to put the level somewhere  in the  proper operating range. 
Push the dipstick 
all the way  back in when you’re through. 
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        Page 476 of 488

Engine (continued) 
Coolant 
..................................................... 6-35 
Coolant  Heater 
...................................... 2.18.3-4.  6.21 
Coolant  Temperature  Gage  (See “Gages”) 
Control  Module  System 
........................................ 6-57 
Diesel  Heater Output 
............................................ 34 
Exhaust 
..................................................... 2-32 
FanNoise 
................................................... 5-25 
Identification 
....................................... 6-76,677,  6-81 
Oil  (See  “Oil”) 
Overheating 
.................................................. 5-10 
RunningWhileParked 
......................................... 2-32 
Starting  Your Gasoline  Engine 
................................... 2-12 
Starting  Your Diesel  Engine 
..................................... 2-14 
Exhaustsystem 
................................................. 6-56 
F 
Filter  Replacement  Chart  (See “Service-Replacement  Parts and Filter 
Recommendations”) 
FinishDamage 
.................................................. 6-74 
Fluid  Capacities  (See  “Capacities  and Specification”) 
FluidLeakCheck 
................................................ 646 
Fluids  (See  “Scheduled Maintenance  Services”) 
Fog  Lamps  (See “Lamps-Fog”) 
Four-WheelDrive 
.......................................... 2-33,  6-33 
Front Axle Locking  Feature 
..................................... 2-36 
Transfer  Case 
........................................... 2-34,  6-33 
Canadian 
...................................................... 6-5 
Diesel 
....................................................... 6-3 
FillingYourTank 
............................................. 6-11 
Fuel 
Foreign  Countries  (Gasoline  Engines) 
............................. 6-11 
Filter  Replacement  (Diesel  Engines) 
............................... 6-9 
Gage  (See  “Gages”) 
Gasoline 
..................................................... 6-2 
Gasolines  for  Cleaner  Air 
........................................ 6-3 
Running  Out of Fuel  (Diesel  Engines) 
.............................. 6-8 
Tankcapacity 
................................................ 6-83 
Water  in  Fuel  (Diesel  Engines) 
............................... 2-74, 6-5 
Fuses and  Circuit  Breakers ................................... 6-79,  6-87 
FuseBlock 
............................................. 6-80, 6-86 
G 
Gages  Engine  Coolant  Temperature Gage 
................................ 2-80 
Oil  Pressure  Gage 
............................................. 2-81 
Tamper  Resistant  Odometer ..................................... 2-69 
Trip  Odometer 
................................................ 2-69 
FuelGage 
................................................... 2-79 
Speedometer 
................................................. 2-69 
Tachometer 
.................................................. 2-70 
Voltmeter 
.................................................... 2-82 
4 
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