oilman
New member
They are both good oils but different in composition. They are both "true" synthetic but different.
Mobil 1 is a PAO (Poly Alpha Olefin)
Silkolene PRO S & R is a PAO/Ester Blend.
The main difference here is that the Silkolene is "surface-active" (electrostatically attracted to metal surfaces) and therefore has advantages over PAO which is inert.
Due to their structure, ester molecules are "polar"; they stick to metal surfaces using electrostatic forces. This means that a protective layer is there at all times, even during that crucial start-up period. This helps to protect cams, gears, piston rings and valve train components, where lubrication is "boundary" rather than "hydrodynamic", i.e. a very thin non-pressure fed film has to hold the surface apart. Even crank bearings benefit at starts, stops or when extreme shock loads upset the "hydrodynamic" film.
Although good, I would give the Silkolene the edge over Mobil 1 because of the above.
Cheers
Simon
Mobil 1 is a PAO (Poly Alpha Olefin)
Silkolene PRO S & R is a PAO/Ester Blend.
The main difference here is that the Silkolene is "surface-active" (electrostatically attracted to metal surfaces) and therefore has advantages over PAO which is inert.
Due to their structure, ester molecules are "polar"; they stick to metal surfaces using electrostatic forces. This means that a protective layer is there at all times, even during that crucial start-up period. This helps to protect cams, gears, piston rings and valve train components, where lubrication is "boundary" rather than "hydrodynamic", i.e. a very thin non-pressure fed film has to hold the surface apart. Even crank bearings benefit at starts, stops or when extreme shock loads upset the "hydrodynamic" film.
Although good, I would give the Silkolene the edge over Mobil 1 because of the above.
Cheers
Simon
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