Short version:
Is there a benefit of changing the PCV valve early (40,000 miles) in the 2AZ-FE Toyota engine that currently has no oil consumption issues?
Long version:
So the Scion xB in my sig has the 2.4 L 2AZ-FE 4 cylinder that has known oil consumption issues (has a TSB for excessive consumption).
Mine has no issues at this time and I want to do what I can to keep it from happening.
From my understanding, it is due to a piston/ring oiling design flaw allowing the oil passages in the piston to the rings to get clogged up.
I have heard conflicting info on if the issue was fixed by the time my engine was made (late 2012), or if mine is even covered in the TSB for it.
I only have ~38,000 miles on the engine now, and as said have no consumption issues at the moment.
The issue tends to start showing up as early as 45,000 miles, but usually around 60,000 miles.
Car is mostly shorter trips (5-15 miles) around town, with at least monthly trips to family 50 miles each way, all highway.
Maybe once a year a 450 mile each way visit to other family.
First 5 oil changes (4,903, 9,728, 13,491, 16,598, 19,859 miles) were done at the Toyota dealer using TGMO (5w-20) and Toyota OEM filters.
I am now doing a 5,000 mile OCI (6-8 months now that the wife is not working) with xw-20 synthetic oil.
Pennzoil Platinum 2 previous changes, Auto Zone Syn right now. Oil stash includes 2 changes of QSUD, 1 change of M1 EP, and finally 6 changes worth of Magnatec.
I am using/will use Wix,Bosch D+ from my stash, then probably Fram TG filters (XG not worth it for shorter interval, but if I did, I would leave filter on for 2 oil changes).
Hopefully the shorter OCI with synthetics will help combat the problem, but I want to do all I can to help prevent the issue from showing up.
So this is where the question actually comes up.
Will doing a preventative PCV valve replacement at say, 40,000 miles help any at all?
It is like $8 on Amazon for an OEM valve, and is super easy to replace.
I know the PCV valve is not a cause for the issue, but if it is something that may help, why not, right?
Is there a benefit of changing the PCV valve early (40,000 miles) in the 2AZ-FE Toyota engine that currently has no oil consumption issues?
Long version:
So the Scion xB in my sig has the 2.4 L 2AZ-FE 4 cylinder that has known oil consumption issues (has a TSB for excessive consumption).
Mine has no issues at this time and I want to do what I can to keep it from happening.
From my understanding, it is due to a piston/ring oiling design flaw allowing the oil passages in the piston to the rings to get clogged up.
I have heard conflicting info on if the issue was fixed by the time my engine was made (late 2012), or if mine is even covered in the TSB for it.
I only have ~38,000 miles on the engine now, and as said have no consumption issues at the moment.
The issue tends to start showing up as early as 45,000 miles, but usually around 60,000 miles.
Car is mostly shorter trips (5-15 miles) around town, with at least monthly trips to family 50 miles each way, all highway.
Maybe once a year a 450 mile each way visit to other family.
First 5 oil changes (4,903, 9,728, 13,491, 16,598, 19,859 miles) were done at the Toyota dealer using TGMO (5w-20) and Toyota OEM filters.
I am now doing a 5,000 mile OCI (6-8 months now that the wife is not working) with xw-20 synthetic oil.
Pennzoil Platinum 2 previous changes, Auto Zone Syn right now. Oil stash includes 2 changes of QSUD, 1 change of M1 EP, and finally 6 changes worth of Magnatec.
I am using/will use Wix,Bosch D+ from my stash, then probably Fram TG filters (XG not worth it for shorter interval, but if I did, I would leave filter on for 2 oil changes).
Hopefully the shorter OCI with synthetics will help combat the problem, but I want to do all I can to help prevent the issue from showing up.
So this is where the question actually comes up.
Will doing a preventative PCV valve replacement at say, 40,000 miles help any at all?
It is like $8 on Amazon for an OEM valve, and is super easy to replace.
I know the PCV valve is not a cause for the issue, but if it is something that may help, why not, right?