Maintenence Required light won't turn off... - Toyota Yaris Forums

Amdkt7 · 04-11-2013, 09:31 AM

As I understand the first oil added to the engine when brand new is designed to aid in breaking in the engine. Changing the oil early is not going to help the break-in process. It is also a huge waste changing oil more often than the maintenance is scheduled for, unless subjected to harsh conditions. Today's oils in modern engines can work effectively for much longer then the maintenance schedule calls for, but period samples must be tested by a lab to confirm that it is still good, so most of us do the normal change anyway at 5K miles.

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04-11-2013, 09:31 AM	#1
Amdkt7 Returning to Toyota Drives: 2013 L 3dr MT Join Date: Mar 2013 Location: Nashville, TN Posts: 154	As I understand the first oil added to the engine when brand new is designed to aid in breaking in the engine. Changing the oil early is not going to help the break-in process. It is also a huge waste changing oil more often than the maintenance is scheduled for, unless subjected to harsh conditions. Today's oils in modern engines can work effectively for much longer then the maintenance schedule calls for, but period samples must be tested by a lab to confirm that it is still good, so most of us do the normal change anyway at 5K miles.