I have an 04 civic with 133k on the clock. Been a great car so far BUT.. today I noticed "rod knock" not like a hammer but like one worn rod bearing. Its between 3k and 3.5k rpms only while revving engine. (Not driving that I can tell). My question is what oil should I put in it to "help" keep the engine alive. I have used WIX filters w/ 5w-20 syn Mob 1 or Castrol the first 110K then switched to 5w30 syn since. I don't like oil additives. Thought just bumping to 10w30 or 5w-40 but not really sure what route to go with my 1.7L Honda. Any advise would be welcomed. THANKS!!!
Edit: Different weights for winter-summer???
Edit: Different weights for winter-summer???
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