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The Effect of ZDDP and MoDTC Additives on the Friction Performance of DLC Coatings and Steel Cam Followers in Engine Oil – The Unique Role and Effect of MODTC Additives

Conduct friction tests using a pin plate test bench to simulate the sliding conditions of the cam follower. In the case of SAE5W-30 engine oil, the friction coefficient of steel pins sliding on steel discs increases from 0.11 to 0.12, while the friction coefficient of steel pins sliding on diamond-like carbon (DLC) coated discs decreases…

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