lubricating oil

Multipurpose Lubricating Oil for Bearings, Gearboxes and Hydraulic Systems Engine oils have to perform many different functions. They not only have to lubricate, i.e. reduce friction and wear but also to keep the machines clean, inhibit corrosion, seal and cool. In many cases only one of these functions is emphasized while the others are neglected. But one must actually consider all of these functions along with their interactions. The places were most wear and soiling takes place in an engine are the cylinder walls, pistons, rings, valves, distributor and oil pump drives, camshafts, tappets, rockers, all bearings and the sump. An oil must withstand a number of physical conditions, the most important of which being temperature. An oil is expected to perform satisfactorily from - 40 to + 300