1999 Jeep Wrangler

Vehicle Specs & Maintenance Data

Engine Size
Engine
4L V6
Oil Type & Capacity
10W-30 (6 qts)
Transmission
Automatic (S8)
Wheel Torque
100
ft-lbs

The 1999 Jeep Wrangler maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Jeep Wrangler.

For oil changes, the 1999 Jeep Wrangler takes 10W-30 motor oil with a capacity of 6 quarts. Brake fluid type is DOT 3, the recommended coolant is Mopar OAT (Purple/Violet), and transmission fluid is ATF+4. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.

When mounting wheels on the Jeep Wrangler, torque the lug nuts to 100 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.

Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.

The 1999 Jeep Wrangler uses 10W-30 motor oil (6 qt capacity), requires lug nuts torqued to 100 ft-lbs, takes DOT 3 brake fluid.

1999 Jeep Wrangler Specifications
Motor Oil10W-30
Oil Capacity6 qt
Lug Nut Torque100 ft-lbs
Brake FluidDOT 3
CoolantMopar OAT (Purple/Violet)
Transmission FluidATF+4
Transmission Fluid
Fluid Type
ATF+4
Shop
Coolant
Fluid Type
Mopar OAT (Purple/Violet)
Shop
Brake Fluid
Fluid Type
DOT 3
Shop
Washer Fluid
Windshield
Shop
DTC Code Lookup

Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 1999 Jeep Wrangler.

No known problems reported for this vehicle yet.

Have the VIN?

Decode your VIN for even more detailed specs including trim-level data.

Decode a VIN
Wrangler — Other Model Years
2026202520242023202220212020201920182017
See Also
1999 Jeep Wrangler Lug Nut TorqueBest Oil for 1999 Jeep WranglerAll Vehicles Using 10W-30 OilAll Vehicles Using DOT 3Oil Change Guide: 1999 Jeep WranglerWiper Replacement: 1999 Jeep Wrangler