When you use the high price lubricants & why?

1 - If it a manufacturer recommendation 

2 - If it valuable equipment 

3 - If we can't stop this equipment at frequent intervals and convergent 

4 - If we sure that the high price is reflected on quality 

price of the libricant is not the key. using the proper libricant is the most important depending on the useage and purposes.

for machines: keep using the high vescosity parameters to ensure the extended life time.

From the purchasing manager’s viewpoint, there can be a fair amount of fear associated with the purchase of high-performance lubricants.

This is driven by the combined issues of proof of performance and value vs. the inevitable spike in purchase cost. Proof of performance can be difficult.

It is impossible to see into the invisible gap between the lubricant surfaces in the machine to judge precisely what the material is doing for its obvious

price premium.                                                  

 Performance lubricants are often not considered for use because of price objections. Although cost control is a legitimate requirement for all businesses, limiting the use of a lubricant material because the price is higher than other similarly graded products is short-range.