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Why are you guys using a 30 wieght oil on an N55 engine... It burns and runs way hotter than most engines and really needs the extra coverage once it reaches operating temp that a 40 weight oil gives...
With how destructible the rod bearing are in these engines I refuse to run less than a 40.... And to add to that coverage I run a 5w40 in summer months and a lighter and thus easier circulated in cold weather, at first start up... 0w40 in the winter months...
Both with a mann filter period.
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