Engine oil for BMW 4-stroke maxi-scooter

Here you will find all the 4-stroke oils for 125cc 4-stroke scooter / maxi-scooter engines and higher displacement BMW. Of all grades, from the simplest engine oil to the most racing protecting the engine and offering the best possible performance, there is something for all users and all engines! Namely: an engine oil has nothing to do with a 2-stroke oil, the 2-stroke is consumed by the engine and must be mixed with gasoline, the 4-stroke oil is stored in the engine, often filtered and must be drained when it is worn (too black and therefore too full of engine wear particles) or too old. The role of 4-stroke oil is to protect the mechanical parts from various frictions, and this regardless of the load requested from the engine, regardless of the temperature at which the engine pushes it (this can go to 120/130°C on certain engines pushed or the oil is badly cooled). How to choose your engine oil? It is necessary to differentiate first between the 2 types of existing oils, the less expensive and less efficient mineral and the more expensive synthetic but more efficient and protective. Depending on the performance of the oil, it contains additives and more or less protects your engine, a very good 100% synthetic oil will protect your engine even if it is very hot, it will avoid friction and wear as much as possible, moreover it will make less vapor (which will lower your octane rating and your oil consumption to a minimum). How to select your engine oil grade? For the less connoisseurs, you might as well refer to the grade recommended by the manufacturer by simply selecting a good 100% high-performance synthesis. You should know that an oil has 2 grades, a cold (before the W) and a hot (after the W), 15W50 for example means that the oil is 15 cold and 50 hot. The smaller the cold grade (0W, 5W, 10W, 15W, 20W, 25W), the more fluid the oil is at negative temperatures, and the easier it is to start your engine in very cold weather. The higher the hot grade (20, 30, 40, 50, 60), the more viscous the oil is at high temperature (100°C), and the more it provides good engine protection during severe use. - Here are the parameters to take into account, do not forget that a very viscous oil when hot (take the example of a 15W50) will certainly protect the engine as it should when hot (you have to be more careful when cold) and will be less likely to be consumed by the latter, but it will also offer more resistance to the engine (small loss of power possible, additional fuel consumption possible). - A much less viscous oil (take the example of a 0W30) will offer the fact of being a little less careful when the engine is cold, it will also offer the engine all the freedom, less fuel consumption possible, better performance a high revs possible, but will be likely to poorly protect your engine and be consumed by an engine that has slightly worn segmentation or valve stem seals! Let us remember that on a competition engine, prepared or pushed, the choice of oil is very important, but also the choice of equipment to circulate it well and maintain it at a suitable temperature which does not exceed 100 / 110°C ideally (oil cooler, oil temperature measurement, oil pressure measurement, high flow oil pump, etc.).