How often to change motorcycle oil grade and motorcycle oil The difference between motorcycle oil and car oil
Division of motorcycle oil quality grades
First, look at the API standard (ie “American Petroleum Institute” standard). This is a comprehensive standard for measuring the quality of oil. The oil quality is divided into: SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL grades from low to high. SL is currently the highest quality oil in the world.
SA: Early 1930s, pure mineral oil, no additives.
SB: In the late 1940s, the first motor oil with additives contained some rust inhibitors and antioxidants.
SC: 1964 provides protection against high and low temperature deposits, wear, rust and corrosion.
SD: 1968 performs better than SC oil.
SE: 1972 More protection against oxidation, rust, corrosion and high temperature deposits.
SF: 1980 has better oxidation stability than SE.
SG: 1989 is better than SF in controlling engine deposition, oil oxidation and engine wear.
SH: The 1993 test pass procedure is stricter than that of SG.
SJ: 1996 world’s top oil.
SL: 2002 SJ level upgrade version
Second, yesSAEStandard(ie“SAE“Standard).
This is a standard for measuring oil viscosity, which is divided into single viscosity and double viscosity. For example: SAE40 (single viscosity), SAE15W-50 (double viscosity). In compound viscosity, W means winter.
The smaller the number before W, the better the low temperature resistance of the oil; the larger the number after W, the better the oil film retention ability at high temperature.
At present, the oils produced by regular lubricant manufacturers are basically graded according to these two standards. Therefore, the packaging shell of its products will indicate the API grade and SAE grade of the oil. The grade of oil used will be indicated on the vehicle’s instructions or on the engine casing. For example: “SF” is marked on the outer casing of the engine, then the oil above the SF level (including SF) can be used. Of course, the higher the oil level, the more expensive it is.
Now, for the needs of market sales (because many users do not know what kind of oil to use for their cars), some lubricating oil manufacturers package the oil into “Wuyang-Honda” respectively. “Special oil”, “Santana special oil”, etc. In fact, the quality of these oils at best meets the minimum requirements of these locomotives (some even fail to meet the minimum requirements). If you know the two standards for the classification of oil, and the economic conditions allow, you can choose a higher level of oil, which is more beneficial to the maintenance of the engine. And don’t have to be superstitious about those so-called “special oil”.
The last thing to note is that it is best to use genuine oil produced by regular manufacturers. In order to make huge profits, some unscrupulous manufacturers falsely standardize the grade of oil, and even use recycled waste oil for secondary production and recharge it with shoddy. After the motor vehicle uses this inferior oil, the wear of the engine will increase.
Motorcycle introduction:
Motorcycle, powered by gasoline engine, two-wheeled or three-wheeled vehicle steered by the handlebar, light, flexible, fast, It is widely used in patrol, passenger and cargo transportation, etc., and also used as sports equipment. From the general direction, motorcycles are divided into street cars, road racing motorcycles, off-road motorcycles, cruise cars, station wagons, etc.
Basic specifications of motorcycles:
For general motorcycles, the first oil change is usually 500-1000 kilometers during the running-in period of a new car. Just change the oil every 2000km. When changing the oil, the brand of the oil is not very important, as long as it is genuine and not counterfeit or inferior. According to the distance of kilometers, changing the oil is the biggest mistake. The best oil change is generally when the season changes, and it is the most appropriate to change! You can change it 4 times a year, no need to calculate how many kilometers! When changing seasons, you can change the oil of different grades according to different temperatures to make the engine work better! Clean the air filter frequently, and the standard oil quantity!
Basic principles of motorcycles:
Two-stroke and four-stroke are different: 2-stroke is a mixture of gasoline and oil. 4 is for lubrication and does not participate in combustion. According to my guess, your MOTO should be 4-stroke. If it burns oil, it is recommended to go to the repair shop to check: cylinder block, piston, piston ring, valve and oil seal. It is very dangerous to burn the oil dry, and it is easy to burst the cylinder. If the cylinder bursts, your engine will be scrapped by more than half. Be sure to check frequently. The lubrication system of the MOTO car is different from that of the car. It is recommended to change the oil every 2000-3000KM. Mobil and Great Wall are good in the market, but there are many fake ones, pay attention!
Basic knowledge of motorcycle oil maintenance: motorcycles are divided into two types: one is a two-stroke motorcycle, and the other is a four-stroke motorcycle. Now basically two-stroke motorcycles have basically been discontinued Since they are all four-stroke motorcycles, first of all, let’s talk about the new car maintenance knowledge of two-wheeled four-stroke motorcycles. The new car needs to change the oil at 300 kilometers (the new car oil is the special oil provided by the dealer), the second time when the motorcycle runs 600 kilometers, and the third time, the oil is changed at 1000 kilometers. It is the first three times, maintenance is very important. After the first three maintenances are completed, the maintenance is performed every 500 kilometers. This will make your motorcycle last longer.
As the lubricating medium of the engine cycle, the quality of the four-stroke motorcycle has a process of changing from quantity to quality.
How often to change motorcycle oil:
(1) The viscosity of the oil changes greatly at high temperature, and it is generally considered that the kinematic viscosity value at 100°C is deviated. When it exceeds 20%, it must be replaced;
(2) The cleaning and dispersing performance of the engine oil is reduced, and the carbon deposits generated during the working process of the engine cannot be dissolved and dispersed;
(3) The engine oil is acidic , contains a lot of acid oxides, which is easy to corrode the parts;
(4) The oil contains metal particles, which aggravates the wear of the parts in operation (the filtering effect of the filter screen structure is not thorough enough);
(5) The flash point of engine oil is reduced, which affects safety. This is because frequent cold starts may allow gasoline to pass through the ring gap into the crankcase. The national standard stipulates that the flash point value of gasoline engine oil shall not be lower than 210 ℃.
Notes for motorcycles:
1. Don’t go to the car wash shop or let others help you wash the car if you have to. The car wash shop seems to have complete tools and operating specifications, but The problem of poor efficiency in pursuit of efficiency also exists. If it is not done, the cremation plug and various lines will be faulty.
2. Be sure to cool down the hot car before washing it. Suddenly flushing the engine, exhaust pipe and other components with cold water, everyone knows the principle of thermal expansion and cold contraction, which will destroy the oil seals in various parts, causing the engine to seep oil. It will also cause the chrome layer at the connection between the exhaust pipe and the engine to fall off, oxidize and rust.
3. Headlights, left and right handrails, switches, exhaust pipes and exhaust ports (best plugged with something), horns, cremation plugs, air filters, batteries and other parts should not be washed directly with water , These parts have circuits. After getting wet, it will cause short circuit or leakage, and the lights will not turn on, the horn will not sound, the fire will not be on, and the driving will be weak. It is best to wipe it with a rag.
4. Be sure to clean the lower part of the engine and the radiator when washing the car. It is recommended to wash it with a toothbrush dipped in detergent. The advantage of this is that it is not only beautiful, but also can easily find problems such as engine oil leakage.
5. After washing the car, dry the whole car with a dry rag, especially the switches, instruments, left and right armrests, cremation plugs, fuel tank caps, etc. Pay special attention to taking off the cremation plug cap and shaking it a few times. , Throw out the water in the upper casing, otherwise it will affect the ignition.
6. Start the vehicle after drying, run the side stand for 5-10 minutes at idle speed, drain the water in the exhaust pipe, and then drive on the road at medium speed for a few minutes or dry in the shade. Blazing in the sun.
7. Every time it rains, when you go home and put your car in the garage, pay attention to dry the car, especially the exhaust pipe. Now the pollution is serious, the rainwater is acidic, and the exhaust pipe is rotten. Most of the time is caused by this reason. Although it is troublesome, it is definitely the way to love a car.
8. After the car is cleaned, the shell can be sprayed with wax, wipe it evenly with a fine emery cloth, and the chain should be lubricated again.
Conclusion: In fact, both motorcycles and cars need to be maintained in the same way. Occasionally give them a bath, so that the dust will not affect the operation of the machine, and it also makes the car look new, and it can also display The owner takes this car very seriously. So it’s not a bad thing to know some common sense about motorcycles, so that you can prepare for emergencies.
What is the difference between car oil and motorcycle oil?
Many people think that car oil and motorcycle oil are the same, but it is not true. , resulting in a series of engine problems. There is a big difference between car oil and motorcycle oil. Let’s take a look below! !
The internal structure of the engine results in the use of different oils. The automobile engine is lubricated separately from the transmission and clutch, and the oil temperature in the crankcase is about 75-90C; while the motorcycle engine includes wet multi-plate clutches, high-speed and transmission gears, shifting mechanisms, as well as pistons, cylinders, intake The moving parts such as the exhaust valve are all in the same structure and share the same volume of oil. Besides, the rotation of the friction plates of the clutch and the transmission gear will generate a lot of heat, and the temperature of the oil in the crankcase can reach up to 80-120 ℃.
The effect of cooling varies greatly: the amount of oil has a great influence on the heat dissipation performance. In addition, most motorcycles are generally air-cooled, and the cooling effect is much worse than the circulating cooling of the water tank of the car. Even the water cooler has poor heat dissipation because its water capacity is smaller than that of the car, which will inevitably lead to the oil temperature of the motorcycle engine being much higher than that of the car oil.
There is a big difference in the oil filter: the oil filter of the car is relatively complete, including the coarse filter and the fine filter, and its filtering effect is excellent, while the motorcycle is very different. In order to reduce the weight and volume of the motorcycle, the oil filter is relatively simple in design, and it is not surprising that its filtering effect is poor.
The size of the power per liter: the displacement power of a car is generally 60-80Kw/L, while that of a motorcycle is 100-120Kw/L, which is about 1.5 times that of a car, while the volume power is 2 times that of a car. The calibrated speed of automobile engine is usually 3000-5000r/min, while the calibrated speed of motorcycle engine is about 8000-11000r/min, which is 50%-120% higher than that of automobile. At the maximum power output, the speed of the motorcycle engine is 10000-15000r/min, while the car engine is 4000-5000r/min, and the maximum does not exceed 6000r/min.
Strengthening strength: Due to differences in driving conditions and various technical requirements, the strengthening strength of motorcycle engines is usually 3-4 times higher than that of automobiles. Motorcycles are light and often run at the speed of maximum power or maximum torque output, and the engine temperature is not only high but also wears more. It can be seen that the working environment of motorcycles is much harsher than that of cars.
