[music]

I drover both a 4.6 and 5.7L. IN town putting around either engine seems fine guessing 2-3 more mpg. But if pulling anything over say 2,000 lbs., then I bet the 5.7L will get as good as gas mpg as the 4.6L does since not working as hard. Being a chevy guy formerly, the best 5.3L engine I had in terms of fun and pulling power and yes, even mpg was the 4.10 rear axle ratio no longer offered in that engine. The 3.73 was o.k. at best and dealer once convince me to get 3.42 rear axle ratio and that thing sucked gas and kicked in and out of gear all the time, what a dog. I think toyota knows what they are doing offering the 4.10 and 4.30 rear axle ratio thus not having to floor the engine to get going makes a huge mpg difference. Yes, the 4.6L is a much smaller cubic displacement vs. the 5.3L chevy and 5.4L ford but the 4.6L offers the 4.10 rear axle ratio thus being a superior engine for pulling and everyday driving pleasure. Rear axle ratios make a huge difference in terms of mpg and pulling power and pleasure to drive.

The GM 6L80 6-spd gears are steeper than what is used in the Tundra. The overall gearing of a 3.91 on a Tundra is like a 3.42 on the new GM transmission. Just a bit of FYI, for what it's worth.

 

[sdailey5]

Just thought I'd throw this out there for comparison purposes:

I have an '08 DC 4x4 with the 5.7 and 4.30 gears.
HWY mileage is about 18 and my average MPG (with about 50/50 HWY and in town) varies between 14.5 and 15.5

Stock rims/tires, no lift.

 

[spiderrey]

Never been a toyota or chevy fan. I have owened my 04 4.7 liter 30,000 mile tundra for a few months now though. From what I read here seems the new 5.7 gets better mileage then the ol 4.7. I havent been able to break 17 mpg yet. Ive hit 16.9, but thats the best so far with very light loads. I have grown to really like the Toyota, its comfortable and has good power for what I need.
Ive always been a ford fan and still am, but I bought an 03 silverado in 03 based simply on their v 8 mileage at the time. I put 230,000 miles on that truck with only a failed a c compressor which a buddy replaced for me. I was impressed with that truck.

 

[11tundrahokie]

ok guys i recently traded in a 2007 DC LB with 5.7 for a 2011 DC 4.6 SB and here is some honest comparison between the 2:

Power:
every day driving I barely notice any difference in power,I'm telling you this new engine got some power no doubt, now if you race from light to light yeah will be different but still i don't think you bought this truck for that purpose.In my case I have Infiniti G37 S and a Yamaha R1 in the garage so no problem there...

I got the 4.6L in a 2011 DC. If I want speed I like you will drive my Infiniti G. However, when I drive my truck I like to just chill. However, I have found that it has passing power when I need it. A lot of people are saying it is great to have the 5.7 when you tow. Some like to race I guess. I wonder how many of those same people have the CrewMax. I got the DC instead of the CM because I wanted a full size bed when I haul stuff.

The BOTTOM LINE: Don't get sucked in to what everybody else likes. If it makes you happy then you got the right one for YOU! I love mine!

 

[Downeaster]

I took the plunge 2 weeks ago, and bought a limited DC with the 5.7 engine only because
I wanted a Limited Tundra. I absolutely love the truck, but find the only thing I am not
content with is the engine. Its is superior engine for sure, but it is far more overpowered
for what I wanted. For me to have been completely happy, I would have liked to have
had a 4.6L engine, that drank a little less fuel, but still be powerful enough for my needs.

 

[ZoSo]

Thanks for the comparison. :thumbsup:

I would love to find a 4.6. But i will probably have to settle for an 07-09...
Which means, no way will I buy a 4.7.

 

[toyturbodiesel]

Thanks for the comparison. :thumbsup:

I would love to find a 4.6. But i will probably have to settle for an 07-09...
Which means, no way will I buy a 4.7.

Makes you wonder how any 4.7's are sold on the used market unless severely discounted. Though if looked at alone, the 4.7 is a great motor, but time does move on, technology too.

 

[ZoSo]

I agree, in its day a great motor. But today they are "heavily discounted".

I found an 08 4.7, Crewmax, Limited, leather w' 69k for 17,900.
I might just settle with a 4.7 for a truck like that.

...It was gone in less than 2 weeks.

 

[pngo121]

I agree, in its day a great motor. But today they are "heavily discounted".

I found an 08 4.7, Crewmax, Limited, leather w' 69k for 17,900.
I might just settle with a 4.7 for a truck like that.

...It was gone in less than 2 weeks.

these 4.7 crewmax were never released in my area. could not even be ordered.

 

[CakeHenn]

I went with the 5.7 4x4 w/ towing package but actually was considering the 4.6. I'm really glad I went with the 5.7 because I now have a 6000lb travel trailer. I'm not sure what the towing capacity is of the 4.6 but I'd guess around 7 to 8k tops and to me that's too close for comfort. If I never towed anything I'd go with the 4.6 as gunning it from a stop light isnt my thing. Although I have to say when I'm on the highway going 65 and I want to pass someone that 5.7 will let you do it quick.

 

[CakeHenn]

One additional thought is that I'd bet the 5.7 would have a better resale vs a 4.6 as I'm guessing more people would rather get the 5.7.

 

[pngo121]

One additional thought is that I'd bet the 5.7 would have a better resale vs a 4.6 as I'm guessing more people would rather get the 5.7.

with gas prices and rarity of the 4.6, the 4.6 maybe easier to sell in this market for guy looking into a full size truck with slight better gas mileage. but for me, i say screw the gas mileage, gimme the power!

 

[CakeHenn]

Most people that buy full sized trucks are not buying because of fuel economy. Of course all things being equal you want better MPG...but in this case you have to give up a lot of power for that. I'd rather have the 5.7 and not need the extra power than have the 4.6 and wish I had the extra power....it just gives you so many more options with your truck.

I personally use the 5.7 power and need it when I tow. I'm sure the 4.6 could also tow my travel trailer but it would not be nearly as competent. I'm not setting any speed records when I tow buy if I need to pass someone going really slow I got the power to do it aggressively enough to be safe...where with the 4.6 I may choose to just slow down and follow. And while towing the 4.6 would probably end up getting worse MPG than the 5.7 in many cases because it would have to work a lot harder.

 

[tundraman]

I am still looking at the 3.5 TT ecoboost for the best of both worlds.

 

[CakeHenn]

Yeah when looking at just MPG and Power the ecoboost may have an edge on Tundra. But then again...they are still new and unproven...so reliability with the Tundra still gets the edge. Also there are going to be some opinion based feature you may like more on one vs the other. Also what about price...how much of a premium do you pay for an ecoboost truck...I heard they werent cheap so if you are paying more then you are not really getting the economy.

There is a good thread about a guy that has both.

 

[pngo121]

Yeah when looking at just MPG and Power the ecoboost may have an edge on Tundra. But then again...they are still new and unproven...so reliability with the Tundra still gets the edge. Also there are going to be some opinion based feature you may like more on one vs the other. Also what about price...how much of a premium do you pay for an ecoboost truck...I heard they werent cheap so if you are paying more then you are not really getting the economy.

There is a good thread about a guy that has both.

ill stick to toyota's reliability.

 

[AnywhereInTX]

Of course the 5.7 is a better towing vehicle as it should be. I still can't beat the $3000 price difference between what I got my 4.6L for compared to the same truck with the 5.7L. Resale value doesn't matter to me because the initial purchase price will outweigh whatever I "lose" when I sell the beast.

 

[Mother Medusa]

Does the 4.6 come with a transmission cooler?

 

[carls06]

My 2010 Tundra also has a 4.6 & it tows great, Im looking at a CNG kit that will use either fuel with the flip of a switch.

 

[AnywhereInTX]

Does the 4.6 come with a transmission cooler?

As long as you purchase a Tundra with the towing package, you will get a transmission cooler. With the 4.6L, the tow package includes towing hitch receiver, trailer brake controller prewire, 4.100 on 4.6L V8, TOW/HAUL mode switch, transmission fluid temperature gauge, supplemental engine oil cooler, supplemental transmission cooler, heavy-duty battery, 170-amp alternator and 7-pin connector.

That's all from Toyota's website. :lol5: