Blown engine

Am familiar with it (great thanks to Ryan for time and effort compiling it...) But daily driving habits largely open to drivers interpretation of what's mild to wild are unknown. Even little things, like I see people do all the time with out a second thought like cold starting vehicle, throwing in gear and the proverbial "pedal to the metal...got places to be". You know warm ups, cool downs, repeated very short trips, etc. etc. Some lower "stressed" engines probably more tolerant to less than ideal habits.

 

I’ve said this maybe in this thread or maybe one of the others, but no GTDI truck engines are calling for 0W-20 except Toyota. Everyone else is running 5w-30 even when their non-turbo motors run 0W-20

 

This is interesting. Hard to pre-fill a horizontal oil filter install. I guess it depends also on the flow of the oil in this engine whether it matters much or not. Video is interesting. Seems like they did some hard data analysis to back themselves up.

https://www-motor1-com.cdn.ampproje...p/?amp_js_v=0.1&amp_gsa=1#webview=1&cap=swipe

 

Well no one half smart is gonna talk about if they do on a public forum. I'm only quarter smart and at the first change, have settled on 0w20 Royal Purple, blackstone analysis and Gold magnetic plug and toyota OEM filter. But these bearing failures have me unsettled. I figured the overstock at the dealers was a Toyota supply catching up and the competition from all the other full size trucks out there but now I am wondering. I got the 10/100 ext warranty too.

 

January-April 2024 Tundra sales numbers are very strong.

 

Yeah I got sucked into that....60k for a new 24 hybrid nicely outfitted vs 55k for a new 24 stripped Taco....32k for my 2017 taco...strong trade and 1500 corp cash made the math work. I see this weekend they are offering 1.99% to entice the masses in. Well I all can do is protect myself now - in for a penny, in for a pound as my grandma used to say.

 

Pick up truck sales are much more competitive as supply finally catches up. 1.99% is that fire sale by current standards.
I paid $63ish for my 1794 last just. I'm sure I could get it cheaper now but I needed a truck.

 

You don't have to use your real first and last name on the forum, then the dealer won't be able to ever locate you, nor send you cease and desist letter (internal forum joke).

By the way, there's really no data supporting that using RP oil is any better in our engines than any regular synthetic oil such as mobile 1. According to the car care nut on YouTube, as long as you change oil every 5k miles, with full synthetic oil, you'll be perfectly fine.

If your engine has bad bearing defect, frequent oil changes won't avoid the failure as many failed engines had oil changed every 5k miles as per Ryan's spreadsheet.

And, there's no data on using 5-30 in our engines. So while one or two members endorse using 5-30, it's just plain chatter without any evidence using it in our engines.

At least when we used 5-30 Redline in our hemi engines, that engine became very smoother and quiet. But with the 3.5 TT Toyota engine, it's already quiet and smooth as it is. So there's not much you can say about 5-30 being beneficial and not actually causing harm.

 

Tundra is having its best months in a very long time. Supply has caught up and dealerships look just like when they did before Covid. When I bought my 2017 Tacoma, they had probably 50 on the lot. Plus all manufacturers have always offered lower APRs when the feds are raising them. During Covid you could buy a car and trade it for more than you paid if you didn’t pay a markup, gone are those days and people have realized that. Trucks sitting on the lots is nothing new and the last few years were a fluke. I think the above statement from Kap1 is the best, you either have it or you don’t it seems. So until your engine goes or doesn’t you will never know. My look is if my motor goes, I’ll get it rebuilt and then I’ll trade it for something different. But in the mean time I’ll continue to drive it and trust it as no Toyota I have owned has let me down yet. Let’s just hope we all got good ones! Haha

 

Interesting that you mention low speed pre-ignition as a possible cause of engine failures.

I was looking around on a diesel truck forum and there was a discussion about the dangers of tuning HD diesels and lugging the engine under high loads. The results are hammered main bearings. No pre-ignition in the diesel trucks, but the low engine speeds increase the amount of time a bearing is subjected to extremely high thrust forces before the crank journal swings past top dead center. This event is measured in milliseconds but evidently the difference between full cylinder pressure at say 1600 RPM and 2400 RPM is enough to cause problems. The consensus being just because some of these HD diesels with a tuner or even stock make enough power at low engine speeds to hold top gear pulling a hill with a loaded trailer, doesn’t mean it’s a good idea.

Maybe Toyota could mitigate this by tuning the shifting logic to grab a lower gear sooner instead of holding low RPM’s just because the engine can supply more torque as engine load increases and more boost is produced.

 

People think diesels are invisible and sprinkled with magic fairy dust.

my Jeep Liberty CRD rod cap bolts stretched and eventually caused my bearings to turn to confetti.

The LX also has more torque at a lower rpm doesn’t it. So higher octane but higher cylinder pressures too

 

In fairness time has revealed the VM Motori diesel is a giant pile of trash.

The discussion I read concerned the V8 Duramax and Powerstroke sometimes eating bearing at high load low RPM holding high gears. I’ve not seen similar reports of the 6.7L Cummins having similar issues but that engine is wildly overbuilt for pickup truck use, has 7 mains to spread the load.

 

I saw that and question one thing. How many engine designs have

The problem I have with the linked article is that most engine oil pumps don't get oil from the filter, at least not directly, they pick up oil from the sump. Oil is them pumped under pressure through the filter.

 

the number of bearing failures against the number of maturing trucks in service seems to be slowing down. 1 +/- month reported.
The gen2 guys are scouring the earth looking for them so the net is cast pretty wide.
Meanwhile, my truck is quiet, tows well and is getting ready to go on another long road trip.

If I was concerned about the failure rate I would stay away from all new pick ups of all manufactures. I would maybe buy an older Ford or Chevy with a V8 that offers crate motor solutions, cheap rebuilt transmissions and simple electrics. If I was concerned I would also stay away from offshore boats, private planes and houses on the water in hurricane zones. The point being, everybody has to have a risk profile that makes sense to them.

 

Interesting. (sharing)
So the Porsche 993 has two oil filters. The larger horizontal one is on the hard oil line that goes to the front of the car and back to an Oil Cooling Tank. To keep from making a total mess the cars skirt needs to be removed before removing the drain plug in front of the passenger rear tire. yeah....

The smaller engine filter (and it quite large a bigger diameter than the Tundra filter) is tucked vertically like a regular filter (way way way up) inside the rear engine. You can't even get to it without removing an oil line and heat exchanger.
Once you have done one of these oil changes without a proper garage lift (DIY), even the Tundra and all its skid plates removal and oil filter cannister hassles, if it has one, seem a breeze in comparison.

 

Plenty of bad diesel designs out there. I can't remember the GM diesel that was more loosely a chevy gas small block but that almost tanked diesels in the US for passenger use. The Ford power stroke 6.0 was a stinker although I didn't have problem with mine. On the other hand, the BMW inline 6 and Benz inline6 have a good history. I had an x5 with a diesel and it was a dream on the road. I liked it better than the gassers. When diesel/gas prices inverted and the emissions gear took hold it changed the game in a bad way. I'll go back to a diesel if I have a need for an enclosed car hauler again.

 

2nd gen hater!!!

 

The irony of saying you should drive an older Ford or Chevy if you’re interested in longevity while admitting you’re gonna need those crate engine options and cheap rebuilt transmissions is truly lost on you, isn’t it?

 

I think he is speaking from a risk perspective. Two trucks each with low but not zero engine failure odds. Do you buy the one with somewhat lower failure odds but if it fails the replacement engine is $25k. Or the one with a slightly higher failure rate that the replacement engine is $7k.

The best example of the above is the diesel vs gas comparison. Diesel is the pick for capability, longevity, and resale. Unless the engine fails and the replacement costs more than a older truck is worth

 

Lower cost risk profile if it fails.

 

I understand. There are just so many examples of 300k+ Tundras out there on completely original drivetrains, it doesn’t make any sense to plan for replacing any part of it. Especially when you consider just how many fewer Tundras are out there compared to Fords and Chevys.

 

There is no oil cooling tank in the front on a 993. The lines you show go up the passenger side to an oil cooler in the front. IT's dry sump. The oil sump tank is under the RR fender.

 

I don't hate them. I had one. I just think they are clunky and out of date.
I don't hang out on Gen2 forms offering my opinion either.

 

The theme is everyone yammering on about how expensive a long block Gen3 is vs a Gen2. I'm respectively trying to point out is that if that is the issue that concerns you, crate motors could bring comfort.

 

I'm really thinking of going that way. Even welding the frame myself.

 

Good plan. Powered by Volvo?

 

Old Fords and Chevys are the epitome of reliability.

 

I sold my Ford 7.3 powerstroke to a relative. It's still running strong 20yrs later. I think it's a piece of shit that sounds like a 1000 quarters in a laundry dryer with a lousy transmission. They love it. To each his own.
I don't hang out on the 7.3 forums telling them their trucks suck either.

 

Yes. What I meant to say is the oil goes to the front and then back. That is one way it is cooled.
And there is an Oil Reservoir tank.

 

Have you considered it?