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Extended Oil Changes

15K views 101 replies 26 participants last post by  JRHAWK9  
Well, because of the oil analysis...

Does the engine actually "run rougher" or is that a perception?
It does on mine (small engine usually feels more), usually at idle when I am around 10,000 kms mark. I did go over to 12,000 kms at one point. Starting engine in summer feels like starting the engine in winter months and rough idle.