1999 GMC JIMMY oil additives

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6-13
As shown in the chart, SAE 5W-30 is best for your
vehicle. However, you can use SAE 10W
-30 if it's going
to be 0F (
-18C) or above. These numbers on an oil
container show its viscosity, or thickness. Do not use
other viscosity oils, such as SAE 20W
-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
ªStarburstº symbol. Failure to use the
recommended oil can result in engine damage
not covered by your warranty.
GM Goodwrench oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20F (-29C), consider using either an SAE 5W-30
synthetic oil or an SAE 0W
-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. Your dealer is ready to
advise if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short trip/city
maintenance schedule:

Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.

Most trips include extensive idling (such as frequent
driving in stop
-and-go traffic).

You operate your vehicle in dusty areas or
off
-road frequently.

You frequently tow a trailer or use a carrier on top of
your vehicle.

The vehicle is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil to
break down sooner. If any one of these is true for your
vehicle, then you need to change your oil and filter every
3,000 miles (5 000 km) or 3 months
-- whichever
occurs first.
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and filter every
7,500 miles (12 500 km) or 12 months
-- whichever occurs
first. Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break down slower.

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9-4
Easy Entry Seat 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Equipment, Adding 3-41, 6-59 . . . . . . . . . . . . . . . .
Electrical System 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Endgate/Liftgate 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Release 2-12 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Release 2-10, 2-11 . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Rearglass Release 2-11 . . . . . . . . . . . . . . . . . . . . . .
Endgate-Mounted Spare 2-12 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-80 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Noise 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-38 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Compartment Fuse Block 6-62 . . . . . . . . . . . . . . . . . .
Engine Coolant 6-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kind to Use 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Gage 2-83 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust, Engine 2
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exit Lighting 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Window 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Gear, Manual Transmission 2-25 . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-7 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter
Air 6
-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Oil 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transmission 2-24 . . . . . . . . . . . . . . . .
First Gear, Manual Transmission 2-25 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-to-Pass 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamp Switch 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Gear, Manual Transmission 2-25 . . . . . . . . . . . . . . . . .
Four-Wheel Drive 2-26, 6-22 . . . . . . . . . . . . . . . . . . . . . . . . .
Four-Wheel Drive (Automatic Transfer Case) 2-29 . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Axle 6
-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Map Lamps 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Reading Lamps 2-51, 2-56 . . . . . . . . . . . . . . . . . . . . . . .
Front Storage Area 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Lamp Bulb Replacement 6-36 . . . . . . . . . .