May go back to the 5.7

While that may be true, that doesn't necessarily mean it is a fair comparison. Different engine/drivetrain types need to be driven differently to get their maximum efficiency.

 

I imagine so. However, adding a small turbo would aid in those respects. Not only would it increase fuel economy, it would also clean up the emissions some amount. I really do believe that Toyota chose to get the twin turbo V6 route to piggy-back off of Ford.

There is also the fact that in the average person's mind, a V6 = more fuel economy than a V8. That is an assumption people just have. And Toyota's marketing wouldn't ignore that.

 

No thanks. I'm not a big fan of superchargers on daily driven vehicles. They put a lot more strain on an engine than a turbo does and they very very rarely ever make an engine more fuel efficient.

It takes horsepower to turn a super charger. Turbos run off the wasted heat energy going out the exhaust. Turbos are obviously superior for efficiency.

 

I agree with you

 

Good luck, hope you can find one.

 

Your 05 had the 4.7. A different animal than the later 4.6.

 

Glad someone did it for me

 

How would these two platforms need to be driven differently to achieve maximum efficiency?

@Iggy1010, do you think you are driving the two platforms in a similar fashion?

 

When I had the V8, every once in a while I'd romp on it cause the sound was awesome. But other than that I drove conservatively. The 22 is whisper quiet aside from the turbos, but again I drive conservatively especially with the cost of gas.

 

I agree the interior is really nice on the 22, except for the standard dash. It looks like an after thought and could have been better. But it always the same thing. When the 07 came out is was nice. Then the 14 came out and it was an upgrade to the previous gen. So obviously we expect it to be better. But eventually human nature will kick in and people will start to say when will Toyota change the dated interior.

 

Yes but Toyota cut corners in other places to get those things. The 22 guys will argue that the cut corners aren’t important but the point of a full re-design is to make the last design better in every aspect.

 

I am hoping the long term reliability of Toyota will really shine through with my 2021. 30k miles so far and I haven't been impressed with the Tundra's interior or ride quality. Both front door panels and the back window rattle constantly. The interior plastics scratch when you look at them funny and the ride quality is on par with the F250 I had previously. The 5.7 seems like a great power plant but I hope the rest of the truck is still intact when I get to 150k-200k miles.

 

I'll hit 30k miles within a week, and my interior is dead silent. Yeah, the doors scratch easily, but the only noise I ever hear is the rear window cable rattling and that is only when I have the rear window down. It's an easy enough fix, but it's down the list of things I want to do to my truck.

Have you removed your door panels (like to replace mirrors, handles, or speakers, or to install sound deadening)? I could see them rattling if you broke some tabs off or didn't quite get them reinstalled properly...

 

I haven't removed the door panels unless the dealer did for some reason. The rear window rattles in the up position as well but seems to go away for a day or so if I roll it down and back up. Honestly non of the issues I listed bother me that much as I'm used driving somewhat noisy trucks. I was just surprised to have these issues pop up so early on into ownership.

 

To be fair, Toyota did not look at Ford and go "let's try Ecoboost", the core of the V35 exists on other engines in the "Dynamic" family, like the ones in Camry, Corolla and literately about 80% of Toyota's line up, when the 3rd gen (XK70) was in development, there was talk about using a V8 that's based off the 2URGSE, but the costs was simply too high and the idea was always introducing hybrid platform on the XK70 ,2UR can be fitted with hybrid and run various cycles but the costs was almost 30% higher during production, the V35 engine is a solid design as the components and drivetrain has been in production since at least 2016 in one way or another, they've looked at various ways to increase efficiency as a whole but it's just hard when you trying to keep up with on the "numbers war" with the big 3, for example, the tires that they use are different from the same brand/models that you can buy aftermarket, they are all significantly lighter, I believe new TRD Pro's AT3W is almost 10lbs lighter than the standard AT3W, but it lost a lot of tread depth and is 6 ply or possibly 4 ply, when you swap tires to E rated, boom, you will loose a lot of efficiency.

Give it time, and I believe the hybrid drivetrain will be better than ever, in stock configuration they more or less get same MPG as the mini duramax without any of the diesel maintenance nightmares, it may not be an aftermarket darling like the 5.7 was/is, but for 99% of the buyers, it'll be great, same with the current quality issue, the platform was launched in unprecedented time, it'll be better.

 

Yeah, I can't help but think that putting skinnier/lighter tires, select body panels made out of aluminum, and a 10speed geared for the 5.7's torque band would put our trucks at just about the exact same fuel economy.

The 3rd gen will be a solid truck, but I'm going to let it get a few to several years under its belt and enjoy my old bulletproof dinosaur in the meantime.

 

Probably, one issue with our engine is it cannot switch between cycles, which means it'll never pass emission standards, whomever has enough time and knowledge should try the 8spd swap from LC200/LX570, but as it sits, I think with 4.88 or 5.29s on the stock 6spd is probably the most ideal scenario for efficiency at cruising, I can see the 10spd allow more efficiency during acceleration, probably about 5% during those situation.

 

I've had my CM about a month. Avg 17mpg overall 20+ highway. I've not owned the v8. Coming off of Ford diesels, but I really like this Tundra. The tuning box really puts it where the power should be.

 

Great color choice!!

 

He is one of the few people that has actually reported not getting an improvement from what I have seen. Once the trucks break in they are clearly showing a pretty distinct advantage. All you gotta do is check out Fuelly.com(https://www.fuelly.com/car/toyota/tundra) and you will see that the 2022 is 25% better.

Also, the point is that it makes 480 ft-lbs of torque at 2400 rpm instead of 401 tq at 3600 rpm. That is a huge difference. Even if it didnt also get better economy, it will out tow the 5.7L with ease. Its so nice having that low end torque.

Loping down the highway is exactly why they got rid of the V8. It was massively wasteful to have a huge engine barely working to move your truck down the road on the way to Starbucks and the grocery store.

The only option besides a turbo'd 6 is a displacement on demand V8 and so far that has been far from perfect as well.

A small turbo with low boost on a V8 wouldnt improve efficiency without displacement on demand. So now, instead of just having turbos, you also have a valve train that has to be able to turn cylinders on and off on the fly. I am sure all the people on here obsessed with reliability would just have a field day with that.

The whole point of a small turbo engine is that its mitigating pumping losses at lower power demand. If you are cruising down the road at 60mph and only need 50 HP to do it, the smaller displacement engine that runs without any manifold vacuum(a 3.5L) is going to be a hell of a lot more efficient than a bigger engine that does run in vacuum(a 5.7L). The only way to make the bigger engine run without manifold vacuum is to shut of cylinders like GM or Ram does with their displacement on demand system.

IDK about you, but towing my 5500 lb travel trailer with my 4.6L around Utah is not my idea of plenty of power. Especially if the truck is rated to tow 10000 lbs.

 

Sorry gang, I forgot to clarify. I meant driving around empty. If you tow heavy, definitely 5.7L.

 

I don’t know why people keep talking about MPG on a 6,000lb brick. Let’s say it’s a 5mpg difference, 15 vs 20. At 15k miles a year at 4.40 a gallon it’s only around $1,100 dollars more to drive a 2.5 gen. Now consider that a 3rd gen cost on average $15k more than what the 2.5 gen use to cost, it’s something that shouldn’t even be discussed.

 

Looks like, on average, very generally speaking, people are seeing a 3.5 mpg improvement in a third Gen over previous trucks.

It’d take a decade plus or minus to even break even on the cost difference.

Get a 2016-2017 Tundra and drive it for the next 15-20 years. After that, I don’t know what to tell ya. Hoverboard?

 

@pursuit2550, 5200lbs, not 6000lbs. Also, $1,100 more for gas per year is actually a lot. It's not pocket change to a lot of people.

 

You missed his point. If you save $1000 a year but spend $15k to do so then you’ll have to wait 15 years to even see zero dollar difference. It’s only after that 15 years that you’d save a single penny on gas. So yes, $15,000 is a lot of money to some people. Which is why they shouldn’t waste their time on a new vehicle.

 

Perhaps you're right. English is not my native tongue. Thank you for clarification.

 

If someone is buying a new truck, they are buying a new truck and MPG's should factor in.

Problem is the competition is at least as good as the 3rd gen for the most part.

 

If you can drive your truck for another 10 years then great. All the power to you. I am going on 8 with my F150 and, while I'd like a new truck, my F150 does what I need it to for the time being and I can't complain.

Not everyone can hang on forever though. Eventually you gotta buy a new truck and one of the benefits of that new truck is MPG's. If you use the MPG's as the only reasons for the new purchase, then yeah, that isn't smart, but I can think of 50 other reasons to get a new truck.

 

You also missed the point I made. No point in talking about mpg between the 2.5 vs the 3gen when the price gap is so big. It’s not a selling point for the 3rd gen unless, like you said you have a very old truck. But I have seen people trade in 2-3 year old trucks and say they get better mpg’ snow. Makes no sense.

 

I was baffled by the lack of space in the 22 DC. They had one at the dealership when I picked up my 15 recently and while the interior is nice, my kids wouldn't fit back there. It's crazy how big the 2.5 gen backseat is in the crewmax.