TSB on Excessive Oil Consumption for 2ZR-FXE Engine

yes, thank you! nice that they finally figured it out before the 15's.

 

According to TSB-2, the oil consumption criteria is one US quart per 1100~1300 miles.



This is much less, slightly less than 50% of the consumption requirement: 1.1 US quart per 600 miles specified in the Owner's Manual.



What is a Technical Service Bulletin exactly. I get the impression it's a notice of potential trouble from Toyota, but one that is not "broadcast", not a a recall. Dealership service departments are notified of the issue, but only initiate the actions in the bulletin as a last resort, if pushed, whatever.

I'm a little incredulous too: can't imagine a dealership taking on a soup-to-nuts engine rebuild. Would they do this, or talk to Toyota, bring in a new engine?

 

From the Toyota FAQ: What is a Technical Service Bulletin and how is it obtained?

(but might announce one!)

 

pointless really, but they must have their reasons. usually it's when they have had enough complaints from the dealers about items that aren't always obvious, but are happening frequently under warranty.

so a customer comes in complaining about oil loss while under warranty, well, here's your tsb. otherwise, it can be a hassle to prove it.

 

Sort of weird that some do and some don't burn oil.
I have done all synthetic changes at the dealer. I have 94k and no problems yet, but does that mean I will with my 2010 Prius?

 

Probably at some point .

But if you check your oil level often, you’ll catch it before it becomes a real problem .

A 2 minute job that saves headaches .

 

Keyword is dealer. If done every 5k and they actually put in the correct oil type, weight and amount you’ll won’t experience it soon.

Also There’s no guarantee even if you’re up top of engine oil maintenance on any cars.

 

Sorry for bringing this back up but found it in a search. Mine has 145k now, did the oil change at 140k and just started getting the oil low warning flashing every 100 miles or so. Took it to the dealer and the oil was gone, they topped it up and they mentioned this 1300 mile test so started that today. Anyone else have experience with this?

 

The warning is low oil pressure. They probably needed to "top it up" four quarts. Did they say?

Considering your consumption to be 4 quarts in 5k miles, if you take it back just before 1300 miles, you may qualify.

 

Even so, my car is out of warranty and they won't cover right?

 

I can post the TSB's when I get home. Was it 60k limit, maybe. But considering they want to DO the test, that seems a BIG positive. Maybe Toyo is quietly authorizing more than they say officially? Go through with it for sure.

Maybe ask them, regarding the warranty?

Do the occasional full throttle hill climb...

 

TSB's:

 

So from what I understand the P/Ns were released in 2014, but Toyota didn't actually install these until the 2015? This suggests that the 2015 should be the Prius to buy no? Usually the last year of a model will have the least amount of flaws given the amount of time to collect data points on that model.

 

Asking for pistons and piston rings for various years, at McGeorge Toyota Parts website, this is what I got:



The pistons were revised in model year 2014, and the rings as well in 2015. The efficacy of the revised parts to reduce oil consumption is still a question?

 

Did you ever get any help from Toyota paying for all the required expensive repairs after failing their test?

Our vehicle failed Toyota's own test, but Toyota was not willing to help in any way whatsoever.

 

Their cut-off is 60k miles? Which is pretty bald; the oil consumption usually starts later, say after 100k.