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Every year the TheMalibuCrew.com gets a couple of members that have tried to change their engine oil with an oil extractor. These extractors are great for this task if used correctly. The issue is when they try to use the engine oil dipstick tube to insert the small plastic extraction tube into the oil pan to suck out the oil. EVERY YEAR there are a couple of posts from members that have broken off the plastic extractor tube in the oil pan because the plastic extractor tube got stuck in the dip stick tube. Now they want to know if they should leave the end of the plastic tube in the engine or pull the engine to be able to drop the oil pan to remove the broken end of the plastic tube. There are always different opinions on if the tube will damage the engine or not. DO NOT remove the engine oil through the dip stick tube! Every Malibu boat that I have seen or owned has a rubber hose attached to the bottom of the oil pan that is for draining the engine oil. You can run the rubber hose through the drain plug under the engine and catch the oil under the boat or attach the oil extractor hose to it and vacuum the oil from the engine. Some engines will have the hose clipped to the engine, some may be laying in the bilge. The rubber hose from the oil pan will have a cap on it. Remove the cap and drain the oil. Reinstall the cap and fill with the correct amount of engine oil.