Just as RWD is catching on again..... seems fuel cost will become a big factor in car purchase decisions.
Is RWD always less efficient than FWD? Maxima and Altima are rated at 20/28 and 20/30 while G35 auto is rated as 18/26 -- but most G35 drivers report much lower mpg.
Would it be possible for a G35 to have equal or better mpg to an Altima or Maxima?
Think we'll see a G25 in the future? I know the current G35 could be made more efficient by a less aggressive rear differential.
FWD = better MPG?
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greg_atlanta
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OLU40
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Well Lexus will soon disperse that myth. A new GS 350GT and LS500 will get 50-60 mpg with their hybrids. Seems as everyone will follow. Besides that I feel taht FWD or RWD does not matter. Manufacturers feel that while they gear for performance for a certain demographic (socioeconomic status etc) that group will not care about gas as much as performance, so they make concessions. This will change dramatically because of this gas cartel nonsense.
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Jeff Williams
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- Car: 1994 Infiniti Q45t
2000 Infiniti I30t
2004 Infiniti M45
71, 72, 73, 82 & 2000 Corvettes - Contact:
The FWD is a more efficient system, thus giving better fuel economy.
I think most of the difference, is in the final drive ratio.
I can cruise at 70 in my 2000 I30t, at about 300 RPM less than a new I35.
I don't recall if the G35 is much different than the I35, but I think it is.
Now, If I could just fit a pair of 33" rear tires on the Q, I could get that kind of mileage, too.
I think most of the difference, is in the final drive ratio.
I can cruise at 70 in my 2000 I30t, at about 300 RPM less than a new I35.
I don't recall if the G35 is much different than the I35, but I think it is.
Now, If I could just fit a pair of 33" rear tires on the Q, I could get that kind of mileage, too.
On the hybrid forums people have complained about getting less than advertised fuel economy. Owners of the Prius and Civic HX have been managing about 35mpg. Thats great, but my Mazda 626 got that too, without heavy batteries.
http://priusonline.com/viewtop...58b9eh ... to....html
They say mileage improves with age, but you have to wait until 7-10k. So basically, you wait a year until you see any improvements.
-Jesda
http://priusonline.com/viewtop...58b9eh ... to....html
They say mileage improves with age, but you have to wait until 7-10k. So basically, you wait a year until you see any improvements.
-Jesda
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Q45tech
- Moderator
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- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
The disparity in real world mpg vs the 1985 designed computer/dyno collecting emissions calculated EPA mpg shows how our driving habits have changed in 20 years. Plus of course the CURRENT higher average speeds [forgot the earlier gas crisises]......newer 4 speed AT had just been out a few years so we were seeing improvements in highway mpg.
"If I could just fit a pair of 33" rear tires on the Q, I could get that kind of mileage, too."
Not really because the engine couldn't function at the gear reduced rpm at 60 mph [2000>1575] Not enough torque to hold 60 with AC on so constant downshifting if you could get to 60.Current 2.455 x [26" actually 25.2=0.952 effictive gear reduction]=2.338 or 333 rpm per 10 mph is pretty low for a 32valve V8.
What we need is 2 overdrive ratios one which would engage at 70 mph.......... or a return to the enforced 55 mph speed limit.
I have seen a few Q with 27" MXV4 in 16" this allow a up to 3.85% reduction in rpm [75 rpm @60] and a gain of 3.85% in mpg almost 1 mpg on highway cruise...............up to 30-50 gallons highway less per year from just changing rear tire sizes.
235/60/16 - 225/60/16 or 225/70/15...............fits rear fine and most brands don't scrub on front..........advantage in that the load index is usually higher than 95.
Whether ABS will hiccup on 27 rear and 26 front is unknown probably not..........lose a few tenths in quarter mile time
Back to HYBRIDS:If the present EPA test shows a 20% error on blended mpg don't you think that the error will expand the higher the base mpg.
At best a 35-50% improvement for equal driving cycle.The problem is with gas only $2.50 a gallon saving $600-$750 per year and paying $3,000-$4,000 more initially may not compute if interest rates return to normal.
Gas will need to go to $4.00 gallon while the price differential stays the same.
That will cause economic havoc since at most only 16 million cars are sold per year and the average age in over 8 years old now taking 12 years to change over.
We will need food [gas] stamps for the poor.
"If I could just fit a pair of 33" rear tires on the Q, I could get that kind of mileage, too."
Not really because the engine couldn't function at the gear reduced rpm at 60 mph [2000>1575] Not enough torque to hold 60 with AC on so constant downshifting if you could get to 60.Current 2.455 x [26" actually 25.2=0.952 effictive gear reduction]=2.338 or 333 rpm per 10 mph is pretty low for a 32valve V8.
What we need is 2 overdrive ratios one which would engage at 70 mph.......... or a return to the enforced 55 mph speed limit.
I have seen a few Q with 27" MXV4 in 16" this allow a up to 3.85% reduction in rpm [75 rpm @60] and a gain of 3.85% in mpg almost 1 mpg on highway cruise...............up to 30-50 gallons highway less per year from just changing rear tire sizes.
235/60/16 - 225/60/16 or 225/70/15...............fits rear fine and most brands don't scrub on front..........advantage in that the load index is usually higher than 95.
Whether ABS will hiccup on 27 rear and 26 front is unknown probably not..........lose a few tenths in quarter mile time
Back to HYBRIDS:If the present EPA test shows a 20% error on blended mpg don't you think that the error will expand the higher the base mpg.
At best a 35-50% improvement for equal driving cycle.The problem is with gas only $2.50 a gallon saving $600-$750 per year and paying $3,000-$4,000 more initially may not compute if interest rates return to normal.
Gas will need to go to $4.00 gallon while the price differential stays the same.
That will cause economic havoc since at most only 16 million cars are sold per year and the average age in over 8 years old now taking 12 years to change over.
We will need food [gas] stamps for the poor.
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Jeff Williams
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2000 Infiniti I30t
2004 Infiniti M45
71, 72, 73, 82 & 2000 Corvettes - Contact:
I have slowed to 70 to 72 MPH, recently, and am seeing 22 to 24 MPG in the Q. I just hate all the traffic. I usually am running by myself, at 77 MPH, but now find myself in the slow lane, and being trapped behind trucks more.
I made a 450 mile trip in the I30t, and saw 28 MPG, while driving in the low 70's. We had 300# of painting supplies in the car, as well!
I made a 450 mile trip in the I30t, and saw 28 MPG, while driving in the low 70's. We had 300# of painting supplies in the car, as well!
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Jeff Williams
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2000 Infiniti I30t
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Q451990
- Moderator
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Just ran some numbers... at 15,000 miles driven per year here's how the differential cost of gas breaks down...
Say the Q gets 17MPG mixed (hard) driving. 15,000mi / 17MPG = 882GalAnd something else that I wouldn't want to drive gets 28MPG. 15,000mi / 28MPG = 535Gal
If premium fuel is $2.25/Gal the yearly gas cost is $1984.50If regular fuel is $2.05/Gal the yearly gas cost is $1096.75
So the difference is $887.75 per year, or $17 per week. Nothing to sneeze at, but certainly not the most expensive component of driving. I'll be happy to pay $17/week to be comfortable and able to pass most anything on the road when necessary. All of that said, I've been driving the truck more lately because I've been working on a condo renovation and don't want to track sheetrock dust into the Q. It makes it that much more sweet to drive the Q and feel that WOT punch...
As a side note, a buddy of mine actually has the solution to higher gas prices. He says that if you always fill up at 1/2 a tank, it's cheaper. Talk about psychological tricks on yourself...
It really burst his bubble when I told him that he was filling up twice as often.
Heath
Say the Q gets 17MPG mixed (hard) driving. 15,000mi / 17MPG = 882GalAnd something else that I wouldn't want to drive gets 28MPG. 15,000mi / 28MPG = 535Gal
If premium fuel is $2.25/Gal the yearly gas cost is $1984.50If regular fuel is $2.05/Gal the yearly gas cost is $1096.75
So the difference is $887.75 per year, or $17 per week. Nothing to sneeze at, but certainly not the most expensive component of driving. I'll be happy to pay $17/week to be comfortable and able to pass most anything on the road when necessary. All of that said, I've been driving the truck more lately because I've been working on a condo renovation and don't want to track sheetrock dust into the Q. It makes it that much more sweet to drive the Q and feel that WOT punch...
As a side note, a buddy of mine actually has the solution to higher gas prices. He says that if you always fill up at 1/2 a tank, it's cheaper. Talk about psychological tricks on yourself...
It really burst his bubble when I told him that he was filling up twice as often.Heath
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Jeff Williams
- Posts: 3394
- Joined: Fri Aug 02, 2002 4:17 am
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2000 Infiniti I30t
2004 Infiniti M45
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Q45tech
- Moderator
- Posts: 14296
- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
Carrying around an extra 25 x 6.2=155 pounds plus tank and piping and valves.
Almost like carrying around a few sticks of !!!Alfred Noble's finest sometimes called dyno.........it might!!! [gotta be careful what you type or the NSA web monitoring computers go wild on key words{}. The alarms go off and some poor soul has to read the whole thread. Might be a way to get more members but who wants another piece of key stroke monitoring spyware on their computer.
Boy will this paragraph get me in trouble:The {Dictionary computers} are connected via {highly encrypted} {UKUSA communications} that link back to computer data bases in the five agency headquarters. This is where all the intercepted messages selected by the Dictionaries end up. Each morning the specially "indoctrinated" signals intelligence analysts in Washington, Ottawa, {Cheltenham, Canberra}, and {Wellington log} on at their computer terminals and enter the Dictionary system. After keying in their security passwords, they reach a directory that lists the different categories of intercept available in the data bases, each with a four-digit code. For instance, 1911 might be {Japanese diplomatic cables} from Latin America (handled by the {Canadian CSE}, 3848 might be political communications from and about Nigeria, and 8182 might be any messages about {distribution of encryption technology}. ----------US has added more since 911------------They select their subject category, get a "search result" showing how many messages have been caught in the {ECHELON net} on that subject, and then the day's work begins. Analysts scroll through screen after screen of intercepted faxes, e-mail messages, FORUM etc. and, whenever a message appears worth reporting on, they select it from the rest to work on. If it is not in English, it is translated and then written into the standard format of intelligence reports produced anywhere within the {UKUSA network} either in entirety as a "report," or as a summary or "{gist}."
Always throw in a juicy tidbit to ponder. there are many key word here and many that meet the +- 12 character before after alarm test.
http://security.itworld.com/43....html
Almost like carrying around a few sticks of !!!Alfred Noble's finest sometimes called dyno.........it might!!! [gotta be careful what you type or the NSA web monitoring computers go wild on key words{}. The alarms go off and some poor soul has to read the whole thread. Might be a way to get more members but who wants another piece of key stroke monitoring spyware on their computer.
Boy will this paragraph get me in trouble:The {Dictionary computers} are connected via {highly encrypted} {UKUSA communications} that link back to computer data bases in the five agency headquarters. This is where all the intercepted messages selected by the Dictionaries end up. Each morning the specially "indoctrinated" signals intelligence analysts in Washington, Ottawa, {Cheltenham, Canberra}, and {Wellington log} on at their computer terminals and enter the Dictionary system. After keying in their security passwords, they reach a directory that lists the different categories of intercept available in the data bases, each with a four-digit code. For instance, 1911 might be {Japanese diplomatic cables} from Latin America (handled by the {Canadian CSE}, 3848 might be political communications from and about Nigeria, and 8182 might be any messages about {distribution of encryption technology}. ----------US has added more since 911------------They select their subject category, get a "search result" showing how many messages have been caught in the {ECHELON net} on that subject, and then the day's work begins. Analysts scroll through screen after screen of intercepted faxes, e-mail messages, FORUM etc. and, whenever a message appears worth reporting on, they select it from the rest to work on. If it is not in English, it is translated and then written into the standard format of intelligence reports produced anywhere within the {UKUSA network} either in entirety as a "report," or as a summary or "{gist}."
Always throw in a juicy tidbit to ponder. there are many key word here and many that meet the +- 12 character before after alarm test.
http://security.itworld.com/43....html
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szh
- Posts: 15932
- Joined: Tue Jul 23, 2002 12:54 pm
- Car: 2018 Tesla Model 3.
Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO! - Location: San Jose, CA
Some info from an earlier post of mine:Quote »Hi, all.
I was coming back from San Francisco tonight, and traffic was light, so I tried to do a very simplistic mileage test using the built-in MPG measuring system.
(As a side note, I remembered a factoid from my 1991 Q45: once the cruise control is engaged, each click of the Set button reduces the speed setting by 1 mph, and each click of the Reset/Accel button increases the setting by 1 mph. Sure enough, it works the same on my M45 and the speed setting were exact (reading the speedo carefully, of course). Cool! )
Anyway, here is what I did:
* Starting at 60 mph, * I set the cruise control in 5 mph increments from 60 mph to 80 mph, * let the car settle into the speed for about a mile, * reset the MPG counter, * recorded the average MPG after 5 miles. * If the road wasn't reasonably flat in that 5 mile section, I would reset the counter and go for another 5 miles.
Here are the results and they are kinda interesting and confusing at the same time!
* Indicated 60 mph: 29.1 mpg * Indicated 65 mph: 27.0 mpg * Indicated 70 mph: 25.6 mpg * Indicated 75 mph: 23.2 mpg * Indicated 80 mph: 23.2 mpg
What is interesting (peculiar?) is the slightly higher than expected reading at 70 mph (off the slope), and the lack of a real change from 75 to 80 mph!
Note that, at a steady 65mph, the M45 met its CAFE "mileage" of 27mpg for highway driving! Also cool!
Anyone have any explanations for this? Is it some gearing/engine-power/something-else anomaly?
I think I have going to have to repeat this test someday over a wider range of speeds![/quote]Z
I was coming back from San Francisco tonight, and traffic was light, so I tried to do a very simplistic mileage test using the built-in MPG measuring system.
(As a side note, I remembered a factoid from my 1991 Q45: once the cruise control is engaged, each click of the Set button reduces the speed setting by 1 mph, and each click of the Reset/Accel button increases the setting by 1 mph. Sure enough, it works the same on my M45 and the speed setting were exact (reading the speedo carefully, of course). Cool! )
Anyway, here is what I did:
* Starting at 60 mph, * I set the cruise control in 5 mph increments from 60 mph to 80 mph, * let the car settle into the speed for about a mile, * reset the MPG counter, * recorded the average MPG after 5 miles. * If the road wasn't reasonably flat in that 5 mile section, I would reset the counter and go for another 5 miles.
Here are the results and they are kinda interesting and confusing at the same time!
* Indicated 60 mph: 29.1 mpg * Indicated 65 mph: 27.0 mpg * Indicated 70 mph: 25.6 mpg * Indicated 75 mph: 23.2 mpg * Indicated 80 mph: 23.2 mpg
What is interesting (peculiar?) is the slightly higher than expected reading at 70 mph (off the slope), and the lack of a real change from 75 to 80 mph!
Note that, at a steady 65mph, the M45 met its CAFE "mileage" of 27mpg for highway driving! Also cool!
Anyone have any explanations for this? Is it some gearing/engine-power/something-else anomaly?
I think I have going to have to repeat this test someday over a wider range of speeds![/quote]Z
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OLU40
- Posts: 285
- Joined: Tue Jul 23, 2002 8:09 am
- Car: Infiniti's Martial Arts, Science, Reading, Sports, Computers, Electronics WOMEN!
EPA numbers are never based on real world driving. I'll take 35 any day. But I assure you as time goes by the hybrids will improve and I know Toyota's is alot better that trashy $ss Ford. Eventually alternatives will phase out gas. Have you guys heard of the kid that invented a system that allows your car to use Vegetable oil. Comes with a heater for the oil and you lose no speed or performance.Jesda wrote:On the hybrid forums people have complained about getting less than advertised fuel economy. Owners of the Prius and Civic HX have been managing about 35mpg. Thats great, but my Mazda 626 got that too, without heavy batteries.
http://priusonline.com/viewtop...58b9eh ... to....html
They say mileage improves with age, but you have to wait until 7-10k. So basically, you wait a year until you see any improvements.
-Jesda
