What kind of hollow brick lubricating oil?

What kind of oil to use hollow brick? Wudu Mr. Zhang bought cement brick, in the course of the test machine is very smooth, brick is the guide post in the course is not very smooth, Wudu Mr. Chang, who lives in a hurry, in understanding the need to regularly lubricated oil, Mr. Zhang also wanted to know what kind of lubricant more appropriate? Suitable viscosity and good heat resistance viscosity of the oil consumption and power losses related to start-up performance, the degree of wear parts, fuel and lubricants, engine size. Oil viscosity is too large, poor mobility, it takes a long time to enter the friction surface, will increase fuel consumption, increases engine wear, cleaning and cooling of the poor, but good sealing; viscosity is too small, it can not form a reliable oil film can not be maintained lubrication, poor sealing, wear and power down. So the viscosity is too large, too small is not good, it should be appropriate. Application engine oil operating temperature range is very wide, at about 300 ℃ requirements to ensure it has sufficient viscosity lubrication; below 0 ℃, -40 ℃ even when the requirements it has enough liquidity to ensure smooth start. It is required viscosity characteristics and good heat resistance. Wudu District of Longnan City is the only city districts, Longnan political, economic, cultural and transportation center and military stronghold, Longnan municipal government is located, one of the cities in Long Southeast regional centers. Tel 18,703,601,521 13,203,844,618