An important additive to prevent oil aging and can effectively improve the service life of oil. In addition, let’s talk about the solid additives commonly used in the market

   There are many additives in the market that claim to improve the protection function of engine oil, and different brands advertise with different mechanisms of action. Here are a few types:

(1) Graphite and molybdenum disulfide solid suspension type mainly play the role of anti-friction and anti-wear, but they can only be applied to solid lubrication and low-speed heavy-load equipment. When the engine speed exceeds 1000r/min, they have no effect. In addition, its state in lubricating oil is unstable, and precipitation will occur under certain time and temperature conditions. Its precipitates will block the oil passage and accelerate the formation of sludge.

(2) Teflon resin particle type was widely used as an anti-wear agent in the United States, but because it will deposit on the oil passage and oil pump filter at low temperature to cause blockage, and deposit in the piston ring groove to make it inactive, And accelerate the formation of sludge, rarely recommended in the United States.