I believe the 2012 TCH upped the recommended interval between oil changes from 5K/6mos to 10K/12 mos. Why?

Did they change the engine in some way to justify extending the period? Or are they just conforming to what's becoming an industry standard? Is there any data to support the longer period? Thanks.

 

Just my thought about it. They are offering oil changes as a perk for 2 years I believe. Saves Toyota money.

I change my 2008 every 5000 miles and use synthetic. 0w20 in the winter and 5w20 in the summer. Just my two cents, right or wrong.

 

I read that somewhere. Makes more sense to me. Especially if you use a good filter with that can handle the proper flow rate and use synthetic.

I don't really care either way. I plan to own mine until about 180-190,000 and sell it. I change it every 7500 with the same stuff that UW mentioned like clockwork.

I think what matters most is that it gets changed at a specified interval with quality oil and filters and that there is a record of it.

Edit:

OOPS... I forgot the most important thing.... What "justifies it" is that it saves them tons of money on all their new warranty and service policies.