reduce smoke Lexus Larger two-stroke engines
An example is lubricating oil for four-stroke or four-cycle internal combustion engines such as those used in portable electricity generators and "walk behind" lawn mowers. Another example is two-stroke oil for lubrication of two-stroke or two-cycle internal combustion engines found in snow blowers, chain saws, model air planes, gasoline powered gardening equipment like hedge trimmers, leaf blowers and soil cultivators. Often, these motors are not exposed to as wide service temperature ranges as in vehicles, so these oils may be single viscosity oils.
In small two-stroke engines, the oil may be pre-mixed with the gasoline or fuel, often in a rich gasoline:oil ratio of 25:1, 40:1 or 50:1, and burned in use along with the gasoline. Larger two-stroke engines used in boats and motorcycles may have a more economical oil injection system rather than oil pre-mixed into the gasoline. The oil injection system is not used on small engines used in applications like snowblowers and trolling motors as the oil injection system is too expensive for small engines and would take up too much room on the equipment. The oil properties will vary according to the individual needs of these devices. Non-smoking two-stroke oils are composed of esters or polyglycols. Environmental legislation for leisure marine applications, especially in Europe, encouraged the use of ester-based two cycle oil.
Źródło: https://en.wikipedia.org/wiki/Motor_oil
Checking the Brake
The car, which go in the winter requires special care and protection. Driving over short distances, even during the hard frost is not a problem, but the car must be carefully prepared, if we want to go before the winter holidays. Then we should buy a proper engine oil, which is resistant to low temperatures, and also check the performance of our tires. Some people, although they can drive with winter tires all year round, but in the case of departure for further route is better to replace tires on decent winter tires. We should also bear in mind that driving in winter requires an efficient automobile brakes because the car much more likely to be exposed to the need for hard braking.
Servicing buses
Allowing buses to carry passengers takes place after checking their technical condition. Inspection of road traffic requires that all vehicles that are to serve as vehicles for collective are fully operational and ensure the safety of passengers. Servicing buses should take place after the establishment of any problems with the vehicle, which can occur while driving or be determined at a standstill. Due to the fact that in Poland passenger transport by buses organized frequently by private carriers, who must themselves cover the costs of buying new vehicles, they try to take care of their vehicles so that they can ride as long as possible. One way to prolong the life of vehicles is a frequent replacement of engine oil.