GMC introduced the Yukon in 1992, and the Yukon Denali in 1999. The 2001 GMC Yukon was available with a 4.6-liter V-8 engine or a 5.3-liter V-8 engine in the base model SLE and SLT. The Denali was given a 6.0-liter V-8 engine from the factory. The oil in the 2001 Yukon should be changed every three months or 3,000 miles, or as indicated by the "Oil Life" indicator built into the instrument cluster. The type (not weight) of oil you use should depend on your driving styles and how many miles are on the vehicle.
Step 1 - Lift the front of the Yukon with a jack. Place jack stands beneath the front subframe rails. Lower the truck onto the jack stands.
Step 2 - Lay beneath the front of the truck and slide yourself in a position to access the rear of the oil pan. The oil pan is the cast aluminum pan directly beneath the engine. Slide a drain pan beneath the oil pan.
Step 3 - Loosen the oil drain plug with an open-end wrench. Turn the drain plug out with your fingers. Allow the oil to drain into the drain pan for no less than three minutes. Insert the drain plug back into the oil pan. Tighten the plug to 25 foot-pounds with a torque wrench and socket.
Step 4 - Move the drain pan underneath the oil filter. The filter is located at the rear driver's side of the oil pan. Remove the filter with a filter wrench, then dispose of it into the drain pan. Wipe the filter mating surface on the engine with a clean rag. Remove any pieces of old gasket.
Step 5 - Open a fresh bottle of oil. Dip your finger tip in the bottle, then rub the fresh oil onto the gasket of the new oil filter. Thread new oil filter onto the threaded tube at the rear of the oil pan. Once the gasket makes contact, tighten the filter 3/4 turn more. Do not over-tighten it.
Step 6 - Lower the Yukon to the ground. Remove the oil fill cap on the engine. Add 6-quarts of 5w30 motor oil to the engine. Replace the oil fill cap when you are finished.
Start the engine and immediately inspect underneath the car for any leaks. Allow the engine to run for approximately 15 seconds, and turn it off. Wait two minutes for the oil to settle into the oil pan, and check the level with the dipstick. Add oil as needed to bring the level to the "Full" mark.
TIPS: Mobil 1 Full Synthetic motor oil is recommended for use in the 2001 Yukon, by General Motors. If your motor has any oil leaks (even minor ones), or has over 75,000 miles, you should use a "High Mileage" oil instead. High mileage oil contains more conditioners, and gasket sealing materials. Using synthetic oil in a vehicle with even minor oil leaks is not recommended, as the synthetic oil is too thin and will leak from the engine faster.
THINGS YOU'LL NEED: 1-ton or greater capacity jack, 2 jack stands, 7.5-quart or larger drain pan, Open-end wrench, Oil filter wrench, 6 qts. 5w30 motor oil (See "Tips" section for recommendations), New oil filter
WARNINGS: Prolonged exposure to used automotive motor oil, has been known to cause cancer. Remove any used motor oil from your skin as soon as possible. Rinse the oil covered area of your skin with warm water, then add regular dish soap and lather your skin well. You can use rubber or latex gloves while performing the oil change if you do not want to contact the oil at all. Dispose of your used motor oil properly. Pour the used oil into the containers that the new oil was in. Take your used motor oil to a local automotive shop or parts store, and they will dispose of your used oil for free. Do not pour used oil down a drain or sewer outlet, as this will get into your ground water. One drop of used motor oil can destroy up to 100 gallons of water.
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