Valve seal leaks after 180k ?

So I have a 2013 Tacoma, bought it brand new, been doing all the oil changes on time. Running only synthetic.

Much to my surprise the last two times i started her up I am getting blue smoke out the exhaust which is clearly valve seals.

What could I have done wrong?

 

Just luck,man

 

Sorry to hear of your troubles......check out this interesting video on synthetic vs conventional oils.

https://www.youtube.com/watch?v=QSjrIwYpu2w

 

yes , bad luck

 

180k lifespan for valve seals doesn't sound like bad luck; it sounds normal and an acceptable lifespan to me. How long do people think that plastic seals should last that seal to the valves? This is a more severe environment than crankshaft seals.

How much oil does it use in 1000 miles?

 

Nothing that would ever be concern, but this just started happening so I will have to start monitoring more closely.

180k does not seem very common for valve seals leaking on a toyota.

 

Actually.. it's more common on Toyota's than you think.

Don't be fooled, it might be a Toyota but they aren't built with the same quality they once used to be built with.

 

Interesting

 

I would bet that the amount of oil burning is very small. It doesn't take much oil to create a lot of smoke. Keep an eye on the crankcase levels and let us know what it's doing, along with the type of usage and number of miles since last check. I would be interested to know about your experience even if I don't have a 4.0.

 

I'll bet that video in post #3 gets some of the die-hard oil fanatics on this forum riled up.

 

Just what we need, another oil thread

 

Unless it starts burning serious oil, I'd probably just throw a jug of oil in the back and check/top it off when I get gas

 

Ha, you guys are great. Thanks for talking me down. I was ready to go trade it in.

 

Check ur PCV system. Make sure its clean and functioning properly.

 

Here is a good DIY
https://www.paulstravelpictures.com...Engine-PCV-Valve-Replacement-Guide/index.html

 

How difficult is to to change the valve seals out? Mine started the blue smoke start up this winter (using synthetic oil). I have the parts ordered and have been into a few chevy engines. Any "DIYs" out there?

 

a very difficult job. I know this is an older post, but to change valve seals have to disassemble half the engine, take the timing chain cover off, remove timing chain and head. once the head/seals are done, have to put the chain back on and retime the engine. If this step is done wrong, the engine will run like crap and risk blowing the motor entirely.

In a shop, this is a 20/30 hour job. Some people will take the engine right out of the truck and put it on a engine stand.