TADAKE | Chinese Market Mainstream Engine Oil Specification and Viscosity

In the Chinese market, there are 10 original Mercedes-Benz engine oil certification specifications. The certification is by no means the newer the better or the larger the number the better. The applicable engine oil certification grade must be selected according to the original engine design, and the original Mercedes-Benz technical documents It is specifically mentioned that because the 229.6, 229.61, and 229.71 are all the latest low-viscosity certification specifications of Mercedes-Benz, they are not applicable to the old Mercedes-Benz gasoline and diesel engines, please refer to the original owner's manual for the selection of these types of certified engine oils to avoid damage to the engine.

MB229.6 specification is Mercedes-Benz's introduction of this new specification into gasoline engine cars in 2016, and the viscosity of lubricating oil is 0/5W30 specification. This kind of oil is called low sulfur, low phosphorus and low ash lubricating oil, and can improve the fuel efficiency by at least 2.5 compared with 229.1. The high temperature and high shear of this grade of oil need to be between 2.9 and 3.2, based on ACEAA5/B5 standard. MB229.61 specification is Mercedes-Benz imported this new specification into 2017diesel particulate filterThe diesel and gasoline engine cars are based on the ACEA C2 standard.

In order to meet the technical requirements of the particle trap engine, BMW headquarters and BMW China jointly developed three new series of engine oils suitable for DPF engines: 0W-20/5W-30/0W-30. But it does not mean that the oil with this viscosity can be assembled with BMW.Engine OilHowever, products with lower ash content (ACEA C series) and BMW certification are required.

The BMW BMW LL-04 is a long-lasting BMW diesel engine equipped with a diesel particulate filter (DPF) exhaust system around 2004.Fully synthetic engine oilStandard. The standard is based on BMW LL-01, but it puts forward higher requirements on environmental emissions.

Applicable to all bands/none worldwideparticulate filterof the diesel engine. BMW Longlife-04 engine oil is only allowed in Europe (including Norway, Switzerland and Liechtenstein) for petrol engines. Based on ACEA C2 standard, the viscosity is mostly 5W30.

And these original oil certification specifications, many stores are not clear.

In the past ten years, the stores are basically 40 for old cars and 30 for new cars. In recent years, it has been changed to 40 for Europe, 30 for the United States and 20 for Japan and South Korea. I don't look at the engine oil specifications of the model and the original engine. I recommend it with my eyes closed. It has caused a lot of oil problems, especially the latest national six specification engine oil introduced in the past two years. It has also reached the oil change cycle. Blind recommendations Cause a lot of engine oil failures. Especially for high-end luxury cars, if you recommend oil at will, it will cause potential use risks.

For the German system, the characteristics of the more biased seal are more suitable. In the low temperature state, because the engine is made of metal parts, there is thermal expansion and contraction. At the same time, because the cylinder block and parts are not completely uniform in thickness and the internal stress of the metal material itself, the metal deformation is not very regular increase or decrease, so that the two parts are matched When it comes to a tight and loose state, the tight place will naturally wear more than the loose place.

Tony K7 C2 fully synthetic engine oil is specially developed for Germany. C2 requires high temperature and high shear to be greater than 2.9 (there is no upper limit),C3 requires high temperature and high shear to be greater than 3.5. The fuel economy of C2 is higher than that of C3. At high temperatures, the viscosity is smaller than C3, and the resistance to the engine is also smaller than C3. The driving experience of C2 is better than C3.

Therefore, for vehicles that require C2 specification oil, if we use C3 specification oil for it, it will cause increased engine resistance, reduced power, and excessive fuel consumption, including problems related to premature sludge and carbon deposits. Therefore, for Mercedes-Benz and BMW engines requiring the use of C2 specification oil, Tony K7 C2 fully synthetic oil is a good choice.

In addition to Mercedes-Benz and BMW, it is important to note thatOil-immersed timing belts are used. Many three-cylinder engines use oil-immersed timing belts to reduce vibration and noise. Compared with timing chains, due to the lack of chain links and the friction between the chain and gears, wet oil-immersed timing The belt can ensure more accurate timing, lower noise and lower friction throughout the life cycle.

Compared with the traditional dry timing belt, the wet oil-soaked timing belt is located inside the timing mask cover cylinder body and is in contact with the lubricating oil, so it has lower noise and lower friction.

Engines that take this type of design are:Dongfeng Peugeot and Dongfeng Citroen 1.2T, Ford 1.0T, Lincoln 1.0, Honda's Ling Pai, Civic, Enjoyment 1.0T, 1.5, Yibo 1.0T, Fox 1.0T, Magic Speed 1.3T,Grand Prix1.5, Chevrolet Kovoz 1.0T, Geely Sansteel 1.0T.

The structural advantages of wet oil immersion timing belt are outstanding, but in the maintenance process, if high-ash engine oil is used, it will quickly damage the Teflon coating on the surface of the timing belt, aggravate the aging and shedding of the material on the surface of the belt, and cause the lubrication system to be contaminated. Cause a series of engine failures, such engine oil must use ACEA C2/C3 low-ash engine oil.