i'm trying to decide what oil to put in my 1997 e320 which has a L6 engine. it has over 150k miles, and runs smooth as it did when new, but now that is getting cold i can hear a few tick-ticks for a few seconds at start up. i've been using rotellat t 5w40, and i'm thinking this oil is maybe too thick. trying to decide which oil to use next oil change: mobil1 0w40 or valv. synpower 5w30?
also i plan on adding a can of lubro moly MOS2 antifriction additive. what do you guys think and recommend?
also i plan on adding a can of lubro moly MOS2 antifriction additive. what do you guys think and recommend?
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