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Environmental Concerns
• Always use established trails, roads, and areas that have been set aside for public off-road recreational driving and obey all posted regulations. • Do not damage shrubs, flowers, trees, or gra ...

Engine Oil
For diesel engine vehicles, see “Engine Oil” in the Duramax Diesel Supplement. To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these si ...

What to Use
WARNING Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning syste ...