I have a 2016 Lexus IS350 F Sport and the owner's manual states to us 0W20 oil. At my last oil change I noticed the shop used 5W30. The manual states if 0W20 isn't available it's ok to use 5W30 but to switch back at next oil change. I asked the shop and they said it's ok to use also plus they claim 5W30 is better all year around. I plan on going back to 0W20 oil at the next oil change but I want to know if there are any long term effects using 5W30. Will it damage the engine?
@lexusguy94
Lexus uses that kind of oil for a reason.. just use 0W20 so you don’t have to worry about it
Stick to the manufacturer's recommendation and never change it. Also, never go back to that shop.
Always, ALWAYS follow the owner's manual. Long term use of a different oil weight can definitely cause issues. A single change won't matter, but switch back when you can.
