According to these measurements , the film strength of Mobil 1 5W30 advanced synthetic is 117,799 psi.
The study measured the film strength of 174 different oils and 5W30 Mobil 1 came on top.From what I understand film strength is measured by squeezing 2 ball bearings together with a film of oil in between. The force with which the balls are squeezed is gradually increased until current passes through, meaning there is metal-to-metal contact.
From my understanding film strength is a representative measurement of how well an oil prevents reciprocating metal parts from hitting each other and wear out.
But I'm not a lubricant scientist, and since there seems to be very knowledgeable folks in here, I figured I'd ask:
Given the correct viscosity, right amount of detergents and 5,000 mile OCI, is film strength a good measurement of protection against engine wear ?
The study measured the film strength of 174 different oils and 5W30 Mobil 1 came on top.From what I understand film strength is measured by squeezing 2 ball bearings together with a film of oil in between. The force with which the balls are squeezed is gradually increased until current passes through, meaning there is metal-to-metal contact.
From my understanding film strength is a representative measurement of how well an oil prevents reciprocating metal parts from hitting each other and wear out.
But I'm not a lubricant scientist, and since there seems to be very knowledgeable folks in here, I figured I'd ask:
Given the correct viscosity, right amount of detergents and 5,000 mile OCI, is film strength a good measurement of protection against engine wear ?
Last edited: