2025 Tundra Engine is down!

damn I have been out of the tundra loop for awhile I can’t believe this is still going on! Sad to see just about every manufacturer has lost the ability to make anything of quality anymore.
@mnm I did that exact thing my daily is a 92 sierra stepside now that I had the 350 rebuilt in lol all the safety crap is overated

 

Doesn't look like early or frequent oil changes have any effect on whether your motor will blow up or not.

 

Not enough evidence to say one way or the other. Frequent changes might help, but it's not a 100% solution.

 

Not even a 10% solution.

 

We don't have the data to make that claim. I understand the frustration causes hyperbolic reactions, but that doesn't equal facts or hard data. The truth is that there is a large blind spot in the info that this forum has on the issue. Combine that with the emotional treatment of the issue and it all gets skewed.

Changing the oil early didn't help SOME people, but may have helped others. It's not something easily measured, especially on here.

 

Everything I've seen and read indicates a problem with the oiling system - not the oil itself. Oil isn't coming out wasted and overused - the engine (crank/rod bearings) isn't getting proper lubrication. Hard to see how frequent oil changes could help when trucks have shit the bed with less than 100 miles on the odo.

 

I think he’s meaning to flush trash particles out with the oil changes, not that the oil is trashed from use.

 

The metal shavings from the bearings coming apart and/or machining debris, wherever folks believe it comes from, would 100% be caught by the oil filter. And if it was as simple as machining debris from manufacturing, Toyota would have assigned a couple QC workers in Alabama and Japan for $75K a year to simply flush the debris out on the assembly line or knock off the hanging metal chads off and then flush the motor out before assembling the internals. It would be just that inexpensive and easy to fix a debris issue in the initial stages of manufacturing on an assembly line.

 

Yes, we do.

 

I think they found out that the real identity of their 1500 was the "HEMI", and the "RAM" brand carried less loyalty.

 

No, we don't. You might have it, but the rest of us are guessing at best.

 

No, if the contamination is located in the galley(s) that are post filter then the last place it ends up is in the filter. The reason the mileages and failures are all over the place, is because the contamination (size, amount, location) is also all over the place. Once the oil film is broken on the bearing surface and any amount of wear takes place, any amount of wear after becomes accelerated wear. The only way to track it is through oil analysis at basically every oil change assuming the wear particles are small enough. Also filters themselves are limited to what they can catch through a micron rating. I’ve drained plenty of break in oil and seen the glitter first hand, I’ve also seen rebuilt engines fail early due to contamination from the previous failure, as in they reused oil lines and coolers that were not cleaned properly. Typically main bearing clearance is the main determining factor in oil pressure, as that bearing wears, oil pressure reduces and probability for even more accelerated wear is present/occurs. It’s a self fulfilling loop once the initial wear occurs.

 

All of your over confident vague responses with zero evidence to prove to us what you’re saying are not helping Toyota’s image. Although you’re playing defense on behalf of Toyota you’re not doing a good job of it. You need to show something to people to prove yourself or you are going to continually look like you do now. I looked into you, doesn’t TRD have a facility in DFW? Do you work for TRD and have to keep quiet about your knowledge due to NDA or do you carry some other weight or merit as an employee of Toyota? From the outside you look like a PR or regional sales guy for Toyota. So how are you getting this super secret info that you can’t divulge on and why should we believe you? Nothing you’ve said so far about the engine failures adds up to what I can see with my own eyes so it’s kinda your word against mine unlesss you start proving yourself.

 

not your fault dude.

for context this can happen to anybody. even in the TW forums someone just recently had an aktinson v6 engine failure which is one of the tried and true toyota engines.

https://www.tacomaworld.com/threads/2020-3-5-v6-engine-failure.861969/

shit happens

 

if there is variability in the problem, and your truck happens to have debris that is small enough to be caught by the oil filter it seems plausible that maybe it will help.

either way i'm sticking to 5k changes

 

You have access to the same information that I do. At least when it comes to failures and what the OCI was for those particular owners.

 

I, personally, do not. I don't have FB, and much of it is there. I'm assuming that every failure isn't listed on FB or here, either. I don't know that it's enough data to definitively say changing oil early doesn't help, as was being asserted by the original post that I quoted.

 

https://docs.google.com/spreadsheets/d/17lX2NAC70TUArOpvdH7IQJKCX5E50vAXpeUogyH5shM/edit?usp=sharing

 

Right. Which is why unfortunately changing the oil early or more frequently doesn’t make any difference. If it did, Toyota would be asking owners to stop in for a couple of free $85 oil changes versus spending $20K in parts and labor for short blocks on failed engines.

 

So, does it not make sense to do all these multiple early on oil changes I keep reading people recommend on here for the new engines? It sounds like it might happen regardless, and if you happen to drain something that would have caused an issue, its just dumb luck?

 

If the "hanging chad", or the debris left in the oiling passage headed to the bearing first, there's nothing an oil change is gonna do. The debris that wouldn't dislodge during the typical cleaning procedure finally breaks loose and heads straight for the bearing. It can block the oiling port, or get lodged in the space between the bearing and race (seems less likely to me as that space is very tight) Smaller debris could make its way into that space, and small particles can get created in that space due to lack of lubrication now with the blocked port. Allegedly.....

 

And the turbos.

 

And the turbos what

 

And the metal from the bearings/debris passes through the $9,000 turbos as well. If this was an issue where the oil passed through the oil filter before circulating to the bottom end, obviously we wouldn’t be talking about the issue at all. Also why having a tech inspect parts and replace as needed during the short block repairs is a screw job for owners of trucks outside the recall window.

 

Have we had that kind of turbo failure?

 

Well new long blocks come with new turbos. Short blocks are “inspection and replace if needed.” Would Toyota put new turbos on the crate motors just for giggles? Nope.

 

Everything in the motor that gets oil will be contaminated. But the only parts we see in the failure mode is the crank and rod bearings to my knowledge. I'm sure if you ran it long enough the cams and turbos would start to show the accelerated wear and eventual failure as well.

 

yea that was my point

 

Yeah, I call BS to that one. You posted in another thread a Toyota TSB which is only shared internally with Toyota dealer employees or direct Toyota employees. So, I would say that the poster is closer to the bullseye.