Checking the oil level in your outboard motor is a simple process, but it can nonetheless be confusing if you’ve never done it before. In addition to having the proper amount of oil in your motor, it’s also important to check the quality of the oil. Begin by pulling out the oil dipstick, and wipe off the engine oil with a light colored rag. Put the dipstick back in, then immediately pull it out. Compare the oil on the end of the dipstick with that against the rag, noting the quality and if there are any particles of dirt or grit. You want your boat motor oil to be a caramel color; if it is black it might require changing.
To check the oil level in the engine, simply note the place on your dipstick that indicates ‘full’ or ‘low’ and the oil line in relation to this spot. Be sure to pull the dipstick out and wipe it back off before putting it back in; this will give you an accurate reading.