QUOTE(serez @ Jul 3 2019, 03:06 PM)
i have questions & seek for honest answers. i own a honda civic fb 2012, milage 165k & running. been using 0w20 fully syn honda oil ever since. but some people including mechanics recommend to change to 10w40 or 5w40 semi synth (due to whatever reason they might think eg old engine, long distance travel, etc etc)
1. is it safe for me to stick with 0w20 until only God knows when?
2. if need to change to other grades / viscos, what things should i consider?
3. suggestion (it can be any brand)
You are using 0w20 because yours is aluminium angine. If your car has no engine now, just stick to 0w20. Else, you could use 5w20. 5w40 is too thick for aluminium engine.