4.6 3v?

Barritia to the rescue

There are a lot of gas stations in Metro Detroit with E85. The cost per gallon has fluctuated from about 80% to 100% of 87 Octane E10. Unfortunately, people often get about 60-70% of the fuel economy, so they are using about 50% more fuel to go just as far. It is not cost effective or valuable for most people.
Be realistic
I'm not where where you live, but I don't idle much in my 30 mile commute. Some stop lights here and there, but a mix of accelerating and stopping on secondary roads and freeways which use way more fuel than idle.
I already said the costs, $550 up front and on average no extra fuel for the F-150 for the past 13 years for choosing the 5.4L over the 4.6 with the same trans/gearing. If you want to get into the details, the 5.4L has come with the larger rear gear (9.75" vs. 8.8") and stronger transmission up til at least 2008.

So, one could have less maintenance costs with the larger engine/trans/gear because he uses a lower percentage of its capacity. I don't know what the 4.6L 3V uses, though.
Oh, and the 5.4L should yield half of that up front cost back when he sells it because it is more desirable.

Both V8's of the same engine design trying to move the same amount of weight. I am only discussing the F-150, not any other pickup or vehicle. History has shown that since 1997 the 5.4L gets the same FE as the 4.6L when comparing the same trans gears, axle ratio, and if it has a transfer case or not.

I understand the time value of money. I explained the costs. If one $550 payment (and $300 credit when you sell) affects your retirement so much, then you should probably not be considering a new pickup.

Also, you act as if the $550 is a one time payment. That is only true if the truck is not financed. The actual figure at the Ford Build and Price website is $630. If the truck is financed (and most are) the figure could be even higher. More importantly, you stubbornly pretend that the new 4.6L 3V engine uses the same amount of fuel as the 5.4L which has 17% more displacement. Anyone who believes that is gullible enough to believe anything.

You may realize the time value of money, but many do not. Americans are more in debt now than ever before and I fear many will not have the funds they need to retire with the dignity they expect. Many are surprised to hear their retirement advisors tell them they will not have nearly enough at retirement age. This is often due to wasteful spending (it doesn't matter much whether that wasteful spending is in their owner-operated business or for personal purchases). It does not help to pretend there is not significant cost associated with buying more engine than one may need.
Average drivers use a surprising amount of fuel idling in traffic and warming up their engines and this is where the 3V 4.6L is far more cost effective.
The 3V 4.6L was not offered in earlier model years so i don't know what you're talking about with the "stronger" transmission. In 2009 both the 3V 4.6L and 5.4L come with the six speed transmission.
No, you don't know. It sounds like you are really stretching to try to make the point that a larger engine is going to save you money.
That's debatable and depends upon future fuel prices. I know when gas climbed over $4/gallon the value of vehicles with big blocks was actually lower than those that had smaller engines. I fully expect fuel to make new highs in the future, it's only a question of how long it takes.
I was simply saying that one can save a considerable amount of money (both in upfront costs and in operating costs) by buying the 3V 4.6L if they don't need the extra power. And most users don't.
Also, you act as if the $550 is a one time payment. That is only true if the truck is not financed. The actual figure at the Ford Build and Price website is $630.
More importantly, you stubbornly pretend that the new 4.6L 3V engine uses the same amount of fuel as the 5.4L which has 17% more displacement. Anyone who believes that is gullible enough to believe anything.
BTW, ever look at the Chrysler 4.7L vs. 5.7L? Very different engine designs, but the 5.7L is actually more fuel efficient by the same 1mpg highway when used in the same vehicle and same trans/gear ratio. Oh wait, Toyota is the same 1mpg better on the highway for its 5.7L over its 4.7lL V8.
It does not help to pretend there is not significant cost associated with buying more engine than one may need.
EPA, schmee-pee-aaa
I have over a million miles and have driven trucks professionally that had far less power and more weight than the F-150. I've also driven just about every major iteration of the F-150 since the models of the 1950's which were truely anemic by modern standards. The 2V 4.6L with the 4-speed auto WAS rather anemic but the 3V 4.6L with the six speed was worlds apart and more than adequate for normal driving. Not only does it have more power and torque but the six speed transmission makes much better use of it.
I do not know if the 6-speed trans and rear axle are the same for the 3V 4.6L in 2009. Since it's been done before, Ford could do it again.
The 5.4L uses the same six speed transmission as the 4.6L 3V. I believe the 5.4L is available with a larger rear axle with higher load capacity (not available with the 4.6L) and I believe the standard axle is the same (but I am not sure). Regardless, this has to do with load capacity, not longevity because they should both last far longer than the first owner will keep the truck.
So your theory would work if the 4.6L and 5.4L got different fuel economy when standardized testing and real owners on here for the last 13 years have proven otherwise.

Did you look the window sticker of a a new F-150 with the 5.4L and 3V 4.6L yet?
What facts do you have that the 3V 4.6L will have better reliability than the 5.4L?
What facts do you have to prove otherwise? I've given mine and you clearly have little understanding of engine design. Different intake, cams, valves, heads, etc all play a factor in power and fuel consumption.
BTW, ever look at the Chrysler 4.7L vs. 5.7L? Very different engine designs, but the 5.7L is actually more fuel efficient by the same 1mpg highway when used in the same vehicle and same trans/gear ratio. Oh wait, Toyota is the same 1mpg better on the highway for its 5.7L over its 4.7lL V8.
I do not consider 0.5mpg average in mixed driving and $523 up front significant when considering spending $30k+ on a new vehicle.
Hey, if you are comfortable with your retirement savings and don't mind burning a few more gallons of gas, then by all means, get the bigger engine even if you don't need it. Just don't try to fool yourself or others into thinking there is not a significant cost associated with it.
Have you driven the new 4.6L 3V back to back with the 5.4L? Do you notice a difference?
The 5.4L uses the same six speed transmission as the 4.6L 3V. I believe the 5.4L is available with a larger rear axle with higher load capacity (not available with the 4.6L) and I believe the standard axle is the same (but I am not sure). Regardless, this has to do with load capacity, not longevity because they should both last far longer than the first owner will keep the truck.
The 3V 4.6L is a new offering for 2009, it is more efficient and more powerful than the old 2V engine so it can't be compared to the results from the last 13 years. What is it about that that you don't understand?
Of course, but the EPA stickers do not reflect reality. The data comes from a stationary dyno and complex calculations, not from real road tests. The EPA system has been gamed by domestic manufacturers to favor larger engines and, in 2008, the EPA changed the test procedures to further advantage large engines. All the MPG ratings went down in 2008 but smaller engines went down more.
...the smaller engine costs less to repair.
I'm not familiar with the specifics of those engines so I won't comment except to say that you sure seem to put a lot of trust in the EPA formulas and test procedures when they are well known to favor larger engines.
Last edited by APT; Feb 23, 2009 at 06:56 AM.
Interesting
The fact that you do not recognize the difference between an engine with 2 valves and one with 3 valves per cylinder pretty much ends our discussion.
It was a pleasure until now, thanks.

It was a pleasure until now, thanks.
Last edited by Real; Feb 22, 2009 at 01:09 AM. Reason: removed the word "are" to keep the school marm happy
Thank you Mr. Obvious. Do you even know WHEN I was looking for the truck I have now?


