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Friction modifiers are added to lubricants in order to reduce friction and wear in machine components. They are particularly important in the boundary lubrication regime, where they can prevent solid surfaces from coming into direct contact, substantially reducing friction and wear .
Friction modifiers or friction reducers, like molybdenum disulfide, are used for increasing engine fuel economy by reducing friction between moving parts. [6] Friction modifiers alter the lubricity of the base oil. Whale oil was used historically. [7] In [8] it's shown how use of anti-friction additives can increase the power efficiency of a motor.
The friction modifier means that the fluid sticks to the surface of the metal slightly stronger, and therefore only helps to prevent early wear. It would be required for Ford and BorgWarner to prove that their transmissions are somehow harmed by friction modifiers.
Whale oil was a historically important lubricant, with some uses up to the latter part of the 20th century as a friction modifier additive for automatic transmission fluid. [11] In 2008, the biolubricant market was around 1% of UK lubricant sales in a total lubricant market of 840,000 tonnes/year. [12]
The addition of friction modifiers to JASO MB oils can contribute to greater fuel economy in these applications. [ 37 ] For two-stroke gasoline engines, the JASO M345 (FA, FB, FC, FD) standard is used, [ 38 ] and this refers particularly to low ash, lubricity, detergency, low smoke and exhaust blocking.
The reason why the form of the friction curve for liquid lubricated surfaces was later attributed to Stribeck – although both Thurston and Martens achieved their results considerably earlier – may be because Stribeck published his findings in the most important technical journal in Germany at that time, Zeitschrift des Vereins Deutscher ...
President Donald Trump is preparing to levy 25% tariffs on imports from Canada and Mexico and a 10% tariff on goods from China effective Feb. 1, he reaffirmed Friday, despite concerns about the ...
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