Blown engine

Toyota recommends 12k interval on Tacoma?

 

I'm not sure what Toyota recommends, but he's saying that Blackstone recommended 12k interval based on his actual oil analysis.

I'd guess Toyota is at 10k interval recommendation.

 

Based on my driving habits and oil analysis, the recommendation from Blackstone was for a 12k interval.

I changed the oil on my BRZ every 5k miles (it was a double duty daily driver and track car) A screenshot of the 4th report with historical data is below. The contaminants dropped to averages by the 3rd change. One of the comments in the very first oil change was that its normal to have these contaminants in a new engine but nothing to be concerned with.

 

As a note: it also depends on what type of oil you're using. Blends will have a shorter interval (5000-7500 miles) where full synthetics can have a longer interval(10000-12000 miles).

This also all depends on driving habits and usage. If you're towing often, you'd want a more frequent interval.

I recommend everyone use an oil analysis lab like Blackstone to find out what the ideal interval is for YOUR vehicle and driving habits. It'll be different for everyone.

 

Be true down to your engineering roots and take your engine apart!

Blackstone said this is an excellent oil that easily pushes it to 15k and beyond in this engine. 3 oils were used through the life of the engine: : German Castrol Edge, Amsoil Signature, Red Line. All are cornerstones of the oil freaks industry. With oil change intervals clarified by Blackstone based on oil state. When I hot-tanked everything and rebuilt the engine, I switched to a cheap Mobil 1 every 5k miles or 6 months, whatever comes first.

By the way, gen 3 gets this in its twin-turbo V6, too.

 

Yeah, it’s kinda disappointing. I’ve been watching how these hold up. Many people are happy, and some are really not. Issues at low mileages, too. Would love to know actual failure rate.

My thought regarding Ford is remains this: awesome specs on paper ≠ high level build quality.

And yes, Ford makes more vehicles, but they also have issues at a higher rate.

 

"In order to reduce environment pollution due to bowl movement, ecologists recommend eating only lettuce and only once a week. It is scientifically proven that people still live till the end of their lives on such a diet.". This is how one would translate these 15k+ prolonged oil change intervals from engines to humans.

 

I tore out the engine on my BRZ and took it apart to strengthen the internals and put a turbo on it! Also rebuilt the engine in my Miata a few times. once those became dedicated racecars, I did oil changes every other competition weekend, so roughly once a month.

I don't have the time or desire to tear apart an engine in my brand new truck, so i'm just going with the blackstone analysis and adjusting OCI based on their recommendations. I'll definitely post the 10k oil change results once I do that

 

Turbo is what kills the oil. I had a similar engine but N/A (same family), it didn't have any sludge or carbon deposits even after using random cheap oil.

 

They also produce 3 times the amount of trucks so of course it’s a higher rate. Or do you mean the percentage of failure is higher?

 

Thats great, as a fellow Mech. E I'm approaching maintainance on this truck in the same way.

 

That’s exactly it. Rate meaning “frequency as measured against another quantity”

 

Production * rate = quantity with issue

you’re using the term percentage instead of rate but they mean the same thing - they’re ratios.

 

@wedemmoez , makes sense to me, thanks. I didn’t intend to turn this thread into an engine oil debate, however the engine failure issue had me wondering what a Toyota engineer uses and OCI.

I found the Blackstone article you mentioned, it’s a good read: https://www.blackstone-labs.com/wp-content/uploads/2018/09/Aug-17-ENG.pdf. As you stated any major oil brand had virtually the same results.

I enjoyed the couple of additional newsletters I read as well. Good data with some humor mixed in: https://www.blackstone-labs.com/information/newsletters/

Please keep us posted if you can share any of the findings from these engine failures. Thanks.

 

The problem with all those oil tests is that they test oil, not the actual engine. Oil is filtered and is usually fine. However, the engine can be covered with carbon, like mine in pictures above. Oil test results were just fine, excellent oil. I would not extend oil change interval beyond 5k miles using any quality boutique oil if the engine runs hot (small displacement, high power, turbo). While carbon per se is not an immediate problem, since it only forms in places where oil flow is minimal or absent, however it can chunk off, flow with oil and clog small passages and mesh filters in solenoids, VVT, PCV, etc. Not to mention oil pickup tube's mesh screen.

 

so I is dumb. Got it.

although in my defense I was using it in The sense of a ratio of failures per unit of time as opposed to a ratio of failures per unit of truck.

 

If there really is less than 50 engine failures, I have to say I’m rather surprised that I’ve seen roughly half of them reported on the internet between one Facebook page and this forum. Didn’t think as high as 50% of owners were active on any pages related to their truck.

 

I can't remember specifically about the Ecoboost, but I think the transverse 3.5 had the timing chain driving the waterpump and they were notorious for leaking coolant into the oil and taking out motors. Since the pump was behind the timing cover, any leaks just went into the oil. My aunt and uncle had it happen to their Edge.

The longitudinal 3.5 had a belt driven pump and didnt have the same issue.

 

UPDATE: Got my trans replaced, was promised a warranty, yeah right! Get that in writing as others have said. Good luck tho, Toyota corporate hides behind the dealer and does not give even the slightest bit of sympathy.

Fast forward a thousand miles (today) my truck died on a 6 lane highway and threw 3 separate errors. I finally lawyered up. Enough is enough with this truck/brand, I am pursuing lemon law.

 

Sorry to hear, most unfortunate. Toyota needs to make this right. Takes decades to build a reputation and can be ruined in days.

 

My 2022 , 25,000 miles is in dealership for main bearing failure. Still waiting on few parts . Changing block and many components.
This is my 4th tundra and I’m sure my last .
Toyota, you are not keeping up with competition. Cheap materials in 3gen , plastic everywhere.
Good luck

 

Yeah I’ve finally gotten there myself. My truck is fine so far but you’re right, it’s cheap everywhere. Feels like it’s fragile, anything could fall off at any moment kind of feeling. Everything squeaks and rattles. It’s my 4th tundra also, and certainly my last Toyota. I’m gonna start looking around for what’s next. I kind of don’t even know where to start.

 

Start by going to the other forums so you are clear eyed about their issues.

 

Something like 3200 Tundras sold in Canada in 2022 and 104.000 in the US. For 2023 we have nearly 60,000 to the end of June in the US, and no data I can find for Canada in 2023. Lets say half of last year, 1600 to date. So we have rounding up, say 169,000 Tundras sold. If 500 have this problem, it's a 0.00296% failure rate, or 1 in 338 trucks. I'm not a truck Actuary, so I don't know if this is inherently bad or not, but it does *sound* low.

USA Source

 

Excellent point. I’m in no hurry. I don’t even dislike my truck, but man I have lost trust in it as an even semi-long term vehicle. My buddies ram (I know rye roll) that costs about 2/3 as much as my tundra is solid feeling inside and out. Was such a stark difference getting in his truck the other day. Made me feel real bad lol.

 

Not to downplay those that have had major issues, they suck and I can empathize. But I find it odd how a few owners can state this is my 4th Toyota, always been Toyota, etc. and then when the first major problem arises, they say they’re gonna bail? Let me clue you in, EVERY manufacturer has issues. This is my first Toyota. Decided on it after all the praise given the brand for reliability, etc. I’ve owned all others except GMC. Everyone had significant issues. I believe Toyota owners have become “spoiled” compared to the other brands. Here is where I see the major difference. Toyota issues TSBs, recalls, etc. more frequently and they actually try to resolve the issue. Go to the other forums and there are issues at Ram, Ford, Chevy that has been ongoing for years. In the end, I wish those with issues get resolved quickly. Just remember, when the grass on the other side is greener it can be deceptive. Sometimes it’s just algae growing over a shit pond.

 

I understand that. My ‘19 Ram 1500 limited w/air suspension had the best interior and ride of any truck I’ve very been in. Glad I don’t have to worry about the hemi tick or cam lifter failures.

 

Those lifter failures are not nearly as prevalent as the forums make you think. Not saying I’d go ram. Also, well aware that the tundra engine failure isn’t nearly as common as the forum makes it seem. I’m not considering the move for that reason, more so how cheap everything feels.
Maybe I am spoiled by Toyota. Doesn’t change my mind that this is prob my exit. I also didn’t mean to start a fight, or argument. It’s just my opinion that has slowly formed over the year ownership I’ve had so far. I can’t help that I’m disappointed. Definitely not blasting the truck as a POS or anything. Just ….let down.

 

It’s all good brother, no fight here. When your expectations are not met, I understand. Just hope you don’t allow the emotion to talk you into a decision you might regret. Hey if the 3rd gen didn’t work for you, no harm, no foul. In the end wishing the best outcome.