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A Sea-doo personal watercraft is expensive costing at least $5499 for the basic Spark model. Hence you, like other Sea-doo owners would like to ensure that it remains in good condition for a longer period of time. You are aware that maintaining the sea-doo using the instructions provided in the user manual will greatly increase the life of the watercraft.
Hence you would to know, what kind of engine oil should I use? Is there are any specific brand of sea doo engine oil which sea-doo has recommended? How often should I replace the engine oil? What is the procedure for replacing the engine oil? How much oil is required and how much will it cost? Answers to all these questions are provided below.
Oil features
Sea-doo has specified that the 4T 5W-40 synthetic oil from XPS lubricants should be used for its watercrafts. The Sea-Doo vehicles are having 4-Tech four stroke engines from Rotax for greater power. Compared to the other vehicles used in air, the Sea-doo vehicles are used in water, and they have to be more powerful to overcome the water resistance.
Hence they require a high quality engine oil which will not be affected by the greater heating and friction. The XPS 4-stroke synthetic oil has been specifically formulated after extensive research, considering the lubrication requirements of different types of vehicles having a 4-stroke engine.
The XPS synthetic oil has been specifically developed for powersport applications where the vehicle is driven at a high speed and consumes more power. With advances in technology, the size of the engine which was being used in vehicles reduced, though the engine power and speed increased. This increased the amount of heat produced when the vehicle was driven at high speeds.
Most of the conventional engine oils which were being used were degrading at a higher temperature, and this increased the friction between the engine, transmission and other parts of the vehicle. Hence to reduce the friction between parts for optimal performance, the oil was developed using additives which do not degrade at high temperatures
The specially formulated oil has proprietary additives which reduce the wear and tear on the engine and other parts of the sea-doo at high temperatures. The additives also will reduce the corrosion of the vehicle parts, even under extreme conditions, when the humidity levels or temperatures are higher.
This will prevent formation of rust on the engine of the sea-doo and the also on the transmission of the vehicle, which can damage the vehicle parts. The oil can be used for a wide range of ambient temperatures ranging from -35 degree C to 40 degree C and will increase the life of the vehicle .
Using the oil
Proper and regular maintenance of the sea-doo will ensure that the user will not face any problem when using the watercraft, and it will be in a better condition. The user manual for the sea-doo specifies that the user should get the maintenance of the sea-doo done at the authorized dealer.
However this is expensive and may be inconvenient for the user. Hence, the user can do the sea-doo maintenance himself using the recommended sea-doo engine oil, replacement parts and following the instructions which have been provided for oil change. Users should be aware that using the wrong engine oil can damage the engine, and the warranty may also get nullified.

Oil replacement frequency
The sea-doo user should check the oil level in the sea-doo frequently to ensure that it is at the recommended level. If the oil is below the recommended level, it should be filled. When the sea doo is used regularly, the oil should be changed after every 25 hours of use, or three months. Even if the sea-doo is not being used regularly, the user should change the oil every year.
This is because the oil may get polluted after some time, and this can adversely affect the performance of the sea-doo. While changing the oil, the oil filter should also be replaced. There are kits available which include all the parts which are required for annual maintenance of the sea-doo, including the engine oil, filters and kits.
Replacing the oil
For replacing the engine oil the sea-doo should be first levelled so that no problem is faced while replacing the oil. The battery should also be disconnected from the engine, to prevent sparking and other similar problems. It is recommended that the engine should be started for five minutes to heat the engine oil.
This will increase the temperature of the engine oil, making it easier to drain the oil from oil tank. Then a suction tube should be used to remove all the existing oil from the oil tank. A pump can be used with the suction tube to ensure that all the oil is removed. The oil tank should be inspected to ensure that all the oil is removed.
After the oil is removed, the other parts of the oil tank like the gasket can also be inspected. If there any damage these parts can also be replaced. If there is any dirt accumulated in the oil tank it can be cleaned. Then the oil filter should be replaced with a new filter.
The oil tank should be filled with the XPS 5W40 engine oil to the level indicated in the user manual using an oil filler. This oil is available in packages of one quart and one gallon. So depending on how frequently the sea-doo is being used, the right size of oil container can be ordered.
Conclusion
The sea-doo personal watercraft is extremely powerful and the user can ride it at high speeds. Hence it is important to ensure that the right engine oil is used in the watercraft for optimal performance and longer life. Though other engine oils may be used for smaller models of sea-doo, for the watercrafts with more powerful engines, sea-doo recommends that the user should use 5W-40 synthetic engine oil developed by XPS lubricants, which includes proprietary additives which reduce friction and corrosion, protecting the engine and other parts.