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Mainstream Large Sedans Comparison

6844 messages,  Last post on Mar 23, 2009 at 12:32 PM

You are in the Sedans Forum. Your Hosts are pat & karens

What is this discussion about? Buick Lucerne, Chevrolet Impala, Dodge Charger, Ford Taurus, Hyundai Azera, Toyota Avalon, Nissan Maxima, Pontiac G8, Car Comparisons, Sedan


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#6383 of 6844
Re: Taurus vs Azera observations [captain2] by allmet33
Jun 03, 2008 (9:16 am)
Reply

Replying to: captain2 (Jun 03, 2008 8:48 am)

Well Captain, the 2GR is a much better engine than the Hyundai 3.8 and I can assure you that I've seen between 27-28 mpg cruising at 75. Mind you...that's resetting the FE calculator once I've reached speed. If I reset it before I start and check it when I come to a stop, overall...the FE is at about 24-25 mpg.
 
Personally, I've NEVER heard of a Ford vehicle bettering a Honda or Toyota vehicle in terms of FE...NEVER.
#6384 of 6844
Re: Taurus vs Azera observations [captain2] by louiswei
Jun 03, 2008 (9:22 am)
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Replying to: captain2 (Jun 03, 2008 9:10 am)

always thought that the direct injection on the FSE was for the extra 30 hp and if anything would hurt FE slightly
 
No Captain, The FSE has dual inject, meaning it combines gasoline direct injection with traditional port injection. Using direct injection and port injection simultaneously facilitates more precise mixing of air and fuel under low and medium load conditions for greater efficiency, while high load conditions dictate the use of direct injection alone for maximum power.
 
Source: Toyota GR Engine
 
As far as I know currently the 2GR-FSE is the only engine to incorporate this technology, that really shows Toyota's dedication for both performance and FE.
#6385 of 6844
Re: Taurus vs Azera observations [captain2] by thegraduate
Jun 03, 2008 (9:41 am)
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Replying to: captain2 (Jun 03, 2008 7:21 am)

Ha, this is likely true. But, as a twenty-something, I'm not rolling in cash, so it makes a difference.
 
And yes, most of my friends say I drive like "paw-paw," but they always line up to ride with me instead of going with someone else. I guess there's something to be said for safe driving.
#6386 of 6844
Re: Taurus vs Azera observations [louiswei] by tjc78
Jun 03, 2008 (9:47 am)
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Replying to: louiswei (Jun 03, 2008 9:00 am)

I average about 19.5 mpg for my everyday driving
 
I don't feel that bad about my 21 - 22 in my Avalon. FWIW I tend to have a lead foot too. The 2GR is just so sweet above 3500 RPM I just can't resist when I have an open lane!
#6387 of 6844
Re: Taurus vs Azera observations [carolinabob] by lightfootfl
Jun 03, 2008 (10:05 am)
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Replying to: carolinabob (Jun 03, 2008 4:46 am)

Re Toyota prices, etc
Yeah, it seems that the Southeastern Toyota conglomorate or whatever it is insists on ripping off the public by establishing those REQUIRED EXTRAS and they don't like being forced to admit it. As long as they insist on stealing that money from the public, I for one will never consider another Toyota, regardless of their offerings. Also I have found out local Pensacola dealer to not be the most gracious of service departments either. At one time our family had 4 Toyotas, now NONE.
#6388 of 6844
Required Extras by popsavalon
Jun 03, 2008 (11:30 am)
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I have never bought a car (Toyota Camry and Avalon) with "required extras" that I didn't want. Just tell the dealer to find the car you want, or be prepared to discount the extras if he wants to make a sale. It seems to work at my dealership!
#6389 of 6844
Re: Taurus vs Azera observations [captain2] by jaymagic
Jun 03, 2008 (12:22 pm)
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Replying to: captain2 (Jun 03, 2008 7:39 am)

What you describe on your Avalon is the same with the Azera. It is extremely frustrating to try and fill the tank, from a near empty status, on a long trip and not be able to get it full. I must admit to resorting to a couple of tactics, when I need to overcome this objectionable limitation.
 
One, I fill it the best I can, and then, make a second purchase by cash another 1.5 gallons and with the pump running slowing for the last 1/4 of a gallon or so, I am able to get it all in.
 
Or, I just wait after it does the automatic stop, give it a few seconds and then slowly try and fill it. Some pumps will let you do this more easily than others. If someone has a better solution, I am all ears.
 
BTW, based on using old method and computer, I find my computer to show about .1 mpg less than manual method, which is certainly good enough for me.
 
Another kind of interesting thing about the Azera fuel computer is that when you are driving and your average mpg goes up (long downhill down a mountain, constant 55 mph , etc.) the miles to empty does not readjust up, the display simply stays where it is until your fuel reaches the point where the miles start to drop again based on the new average fuel economy. It is sometimes very interesting to drive 10 miles and see the miles to empty never change. My 07 Azera does not have an instant FE reading, only an average.
#6390 of 6844
Re: Taurus vs Azera observations [louiswei] by captain2
Jun 03, 2008 (12:36 pm)
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Replying to: louiswei (Jun 03, 2008 9:22 am)

Devil's advocate then Louis - why - if it (the FSE) is supposedly more efficient are the FE ratings lower for the IS than it is for the Avalon - its not because the IS is any heavier. Or for that matter with FE being a primary sales attribute these days then why wouldn't Toyota put the DI in the Avalon and increase the FE advantage it already has in this class?
As far as Toyota being the ONLY one - hasn't BMW been using the same technology in their 'double-Vanos' straight sixes even longer than Toyota? VW in their 280hp 3.5 Passat engine, MB in their C350?? I was surprised to see BMW have to resort to turbocharging in the new 335 though, simply to produce the same sort of naturally aspirated power you have in your IS already. Guess that in itself speaks volumes about the techinical superiority of the 2GR.
#6391 of 6844
Re: Taurus observations? [brucelinc] by snaglepus
Jun 03, 2008 (12:38 pm)
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Replying to: brucelinc (Jun 03, 2008 5:07 am)

"Going down into a pretty stiff headwind, we got 29.6 MPG. Coming home, we got 31.4. This was 90% Interstate cruising at 75 - 80 MPH. We have taken a number of shorter
trips on two-lane roads at lower speeds and gotten 33-34 MPG. On her daily commute
of 50/50 city and freeway, grocery shopping, etc. it averages around 24-25 MPG.
The tall overdrive in 6th gear really helps fuel economy on the highway. The
engine is powerful enough to prevent unwanted downshifts on hills, too"

 
"The Taurus has a 3.16 axle ratio and a .74 OD for a final drive
of 2.34. At 75 MPH, it is turning around 2000 RPM"

 
Using your figures which BTW I am unable to verify for a 2008 Taurus, we find
that with the standard tire, a Continental ContiTouringContact
CT95, size 215/60TR17 turns 767 revs per mile.
 
3.16 X 0.74 X 767 equals 1794 revs per mile at 60 mph. Indeed, rather 'tall' gearing.
 
1794 divided by 60 equals 29.89 revs per one mph.
 
Taking that further, we find that:
 
75 mph will be 2241 RPM
 
80 mph will be 2391 RPM
 
I do not see how this vehicle turning those revs will achieve those high
average miles-per-gallon figures stated at those speeds.
#6392 of 6844
Re: Taurus vs Azera observations [jaymagic] by captain2
Jun 03, 2008 (12:46 pm)
Reply

Replying to: jaymagic (Jun 03, 2008 12:22 pm)

the miles to empty does not readjust up, the display simply stays where it is
Avalon is the same, but my wife's 5 year old Altima OTH does 'adjust up'. One other thing that I'd like to see changed on the Avalon, the 'average MPG' resets itself every time you fill up and sometimes will even reset itself when it 'thinks' it's getting filled up - gas sloshing around in the tank or parking on a slope. Makes it impossible to keep track of FE on a long multiple fill-up trip - unless you do it manually. Have found the computer FE to generally be closer than the calculated method, especially if I'm not the one 'breaking the rules' and filling the gas up the filler neck.

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