X15 down on fuel economy recently?
10-09-2023, (Subject: X15 down on fuel economy recently? ) 
Post: #11
RE: X15 down on fuel economy recently?
More than likely, if this is bearing wear at 500-600k miles with 12-15k oil change intervals using Mobil delvac 15w40 conventional. I don't even want to know how with extended oil changes would look..
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 Thanks given by: tree98


Messages In This Thread
RE: X15 down on fuel economy recently? - marek4792 - 10-09-2023



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