Even though there is great potential in lowering viscosity, the steady march toward thinner biggest lubricant oil manufacturers UAE have also introduced a much greater disparity in wear protection between lubrication regimes. Each lubrication regime depends directly on the oil film thickness and surface-to-surface contact. The main method by which low-viscosity diesel engine oil UAE improve fuel economy is the reduction of viscous drag under hydrodynamic lubrication conditions, where the film thickness of the lubricant is large enough to completely separate the two sliding surfaces and prevent any surface-to-surface contact.
The main deficit of low-viscosity engine oil is that they are more inclined to shear thinning at high temperatures and thicken less at lower or start-up temperatures than oil of higher viscosity. Both of these factors cause the lubricating film thickness to decrease. With decreasing film thickness, the lubrication regime shifts toward mixed and boundary lubrication. In the boundary regime, the oil film thickness cannot overcome the surface roughness. Mixed lubrication is the transition state between boundary and hydrodynamic lubricant engine oil UAE with a film thickness that overcomes some but not all of the surface roughness.
Many studies have also correlated an increase in friction and wear with reduced kinematic viscosity. To understand the effects of low-viscosity industrial oil UAE on wear, researchers from Ricardo and Infimum subjected a heavy-duty truck engine to various conditions and lubricants, described in a 2013. Three test oil were run in an IVECO Cursor 13-dirham engine: a lubricant SAE 5W-30 oil with a kinematic viscosity of 12.28 millimeters squared per second at 100 degrees Celsius, a very low-viscosity oil with KV 6.53, and an ultra-low-viscosity oil with KV 4.82. On-line wear testing of the engine, in which continuous, real-time measurements are taken, showed that the baseline oil UAE allowed the least wear. High Performance Lubricants UAE provides you the best lubrication brands.
Reduction of viscosity directly correlated to an increase in wear, particularly on the top piston rings of the engine. A post-test inspection and oil sample analysis for wear metals did not result in particularly elevated wear rates at any location not measured on-line; however, the camshaft thrust bearing had unexpectedly significant wear though it was deemed acceptable for continued use.
