Forget the EPA- Consumer Guide Auto gives it's real world MPG numbers
07-21-09, 10:07 AM
#17
Lexus Champion
what's your average MPG?
07-21-09, 10:16 AM
#18
I'll let Mike give us his actual, personal info with his car but my experience has been that the GS 460 has a decent lead on the highway, but the 450h has a sizeable advantage in stop-and-go driving.
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
07-21-09, 12:20 PM
#19
Lexus Fanatic
(By lugging, I mean near-idle speeds, which, in higher gears, can stress the crankshaft and main bearings some).
Last edited by mmarshall; 07-21-09 at 12:25 PM.
07-21-09, 12:24 PM
#20
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I'll let Mike give us his actual, personal info with his car but my experience has been that the GS 460 has a decent lead on the highway, but the 450h has a sizeable advantage in stop-and-go driving.
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
07-21-09, 02:20 PM
#21
Lexus Fanatic
Impressive mileage for the IS-F considering performance capabilities.
07-21-09, 02:40 PM
#22
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I'll let Mike give us his actual, personal info with his car but my experience has been that the GS 460 has a decent lead on the highway, but the 450h has a sizeable advantage in stop-and-go driving.
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
The 460 can easily go over 30MPG on the highway...the 450h I drove for a while could not go over 27. In the city the 450h could do somewhere around 23 or 24, while a 460 probably dips into the high teens or very low 20s.
I would imagine that they are very close to breaking even with eachother, but the advantage of one or the other lies in which type of driving you do most often.
Mike can probably shed more light...
On the other hand I have done some speeding or if I am cruising at 80 with the windows down Its getting about 23-24 MPG. I have seen a tank average in the 22 and 23 range.
The 450h really PREFERS the highway. Cold starts and stop and go around the town hurts it.
For instance I get better MPG in Atlanta cause the roads are big and I'm driving on the highway compared to when I'm in Athens which is a small town and I'm driving within a 5-7 mile radius.
What the article fails to mention is
-450h is quieter
-450h is faster
-450h is cleaner SULEV
-450h has class leading passing power
I can only imagine the NEXT GS 450h might hit 30 MPG average like the RX. That would truly be something!
07-21-09, 03:33 PM
#23
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07-21-09, 06:11 PM
#24
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It would really be something if Toyota could incorperate cylinder deactivation like the Accord hybrid did. If an Rx hybrid can do 28 MPG Hwy without that tech., I don't see why it couldn't hit 30 with it.
07-21-09, 06:26 PM
#25
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Its so funny people remarking "Is it on"
With the 430 with the L-tuned exhaust its "I can here u coming a mile away" 
07-21-09, 06:52 PM
#26
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I am well aware of the workings of a two mode hybrid. But the fact is that a 6 cylinder hybrid could run on 3 cylinders as its already augments by electric motors. Thus the 255 HP Accord hybrid recieved a 35 MPG Hwy rating. Recall that under the same system of rating the 197 HP Altima, a full hybrid, was rated for 36 MPG Hwy.
07-21-09, 07:09 PM
#27
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I am well aware of the workings of a two mode hybrid. But the fact is that a 6 cylinder hybrid could run on 3 cylinders as its already augments by electric motors. Thus the 255 HP Accord hybrid recieved a 35 MPG Hwy rating. Recall that under the same system of rating the 197 HP Altima, a full hybrid, was rated for 36 MPG Hwy.
The revised ratings are 25 City, 33 Highway and a 28 Average.
http://www.fueleconomy.gov/feg/sbs.htm
Shame Honda didn't stick with offering it.
07-21-09, 07:11 PM
#28
Lexus Fanatic
Agreed. Chrysler uses cylinder deactivation on the non-SRT Hemi, and Honda uses it on some V6's, but the difference in fuel mileage really isn't that much. That's because the cylinders still getting fuel have to work harder for each one to do their share of the load. In other words, the laws of physics don't change; they are just redistributed among fewer cylinders.
07-21-09, 07:13 PM
#29
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http://www.honda-accord-guide.com/Accord_Hybrid.html
The revised ratings are 25 City, 33 Highway and a 28 Average.
http://www.fueleconomy.gov/feg/sbs.htm
Shame Honda didn't stick with offering it.
The revised ratings are 25 City, 33 Highway and a 28 Average.
http://www.fueleconomy.gov/feg/sbs.htm
Shame Honda didn't stick with offering it.
Exactly. It could run on 3,4, or 6 cylinders as needed. This really was a good powertrain for an Acura model. Stupid Honda. A second gen. Accord hybrid is coming, but if its anything like Honda's current 4 cylinder hybrids Ill pass. I still can't believe they cancelled the Accord hybrid in the first place when the Camry hybrid sells 40,000 units a year.
07-21-09, 07:19 PM
#30
Cylinder deactivation is completely useless, if anything it does more harm then good. The Accord hybrid was rated under old EPA system.
Cylinder deactivation only means that the "deactivated" cylinders are not getting fuel. They are still moving and going through a compression cycle, so when you have lets say 300hp 8 cylinder engine running on 4 cylinder, it means that the other 4 cylinders are spinning a 150hp compressor. It just adds complexity and additional wear and tear on one bank of cylinders, injectors, spark plugs, etc.
Cylinder deactivation only means that the "deactivated" cylinders are not getting fuel. They are still moving and going through a compression cycle, so when you have lets say 300hp 8 cylinder engine running on 4 cylinder, it means that the other 4 cylinders are spinning a 150hp compressor. It just adds complexity and additional wear and tear on one bank of cylinders, injectors, spark plugs, etc.