2010 G37 sedan

[dmuramoto]

Last night Infiniti debuted (among others) the mid-model update of the G37 sedan. Did anyone notice the Essence styling cues in the G37's revised headlights or grille? The bumper also came in for some revisions with fog lights moved into the lower brake scoop area. Inside, there's some nice improvements with the instrumentation and nav system. Overall, it's a nice package, but I wonder why Infiniti elected to drop scratch shield paint after touting it so heavily?

[dmuramoto]

Reviewing the specs on the '10 G sedan, it's notable that fuel mileage figures have gone up to 19 city/27 hwy. Looking closer, I don't see any changes to the gear splits of the manual /auto trannys or final drive ratios, either. Infiniti didn't pull this off with some slight-of-hand drivetrain changes, so how did they raise mileage by 1 MPG in city and 2 MPG in highway driving cycles? With the costs associated with EPA testing and being able to publish such figures, there's gotta be a story on how this was accomplished...

[audtatious]

I agree, increase is interesting.

It was time for a mid-gen upgrade on the sedan since the current version has been used since '07.

[dmuramoto]

I agree, increase is interesting.

It was time for a mid-gen upgrade on the sedan since the current version has been used since '07.

The question is: do you like the new changes on the G37 sedan? It'll certainly be intriguing to see the upgrades in person, but my first take is that there'll be more than a few Infiniti foglights being broken in the new bumper.

[audtatious]

I hope they are not glass like the 2k2-2k3 Maxima had. If so then the best thing to do would be to upgrade them to HID quickly. In 7 years of ownership I broke 3 sets of glass fog lights in the first 4 years. Afterward I changed over to new fogs with HID and never broke another set. Heat from the halogen bulb is what helps crack them.

[dmuramoto]

Interesting- now I'll be bending down trying to figure out if those foglights are HIDs and if Infiniti used plastic or glass lenses. I'm also interested to find out why scratch shield paint was dropped. After showing off this new technology for the past two years, I hoped it would become a standard feature across the entire range of Infinitis/Nissans.

[audtatious]

Highly doubt Infiniti will put HID in their fogs. They haven't done it yet but who knows.....

[SteveTheTech]

I really wonder it is just now that the G sedan is getting lower fascia mounted fog lights. People have been trying to make this look normal for years.

Once the 2010 sedan trend make their way to the coupe I think I will actually buy a new G, or at more likely a demo. I would really like a G37xS coupe though and might wait to buy one until exactly what I want is available. I love the changes the EX has seen for 2010 and cannot wait to see what the Gs impact will be.

[SteveTheTech]

Quick update the 2010 coupe will have the same updates as the sedan although the majority of the auto news sites mention only the convertible is not changing.

I think one might have to come home with me. I hear my dealer has a few sports on order.

[audtatious]

I saw a 2010 the other day and while the lower fogs look good I think the front fascia around them could be made a tad more stylish and less "cheap" feeling.

[Father_Flanagan]

Reviewing the specs on the '10 G sedan, it's notable that fuel mileage figures have gone up to 19 city/27 hwy. Looking closer, I don't see any changes to the gear splits of the manual /auto trannys or final drive ratios, either. Infiniti didn't pull this off with some slight-of-hand drivetrain changes, so how did they raise mileage by 1 MPG in city and 2 MPG in highway driving cycles? With the costs associated with EPA testing and being able to publish such figures, there's gotta be a story on how this was accomplished...

I just purchased an oh-ten G37S sedan, and have noticed one thing that may contribute to the better gas mileage.

I read in another post that an owner of an 09 G37 sedan was upset/ annoyed with his 7speed auto transmission's downshifting as he tried to roll/ coast up to red lights. He wished that he could coast more smoothly and give up the engine breaking.

I have the same 7speed auto in a 2010 G37S sedan, and I am able to coast a long way up to stop lights; the transmission does not downshift until it has to to avoid stalling.

In my opinion, this would be worth about 1 mpg gain in easy city driving. I am still in my break-in period, but I hope to get the newly posted MPG numbers later.

Hope this helps.

-Jase

[dmuramoto]

I just purchased an oh-ten G37S sedan, and have noticed one thing that may contribute to the better gas mileage.

I read in another post that an owner of an 09 G37 sedan was upset/ annoyed with his 7speed auto transmission's downshifting as he tried to roll/ coast up to red lights. He wished that he could coast more smoothly and give up the engine breaking.

I have the same 7speed auto in a 2010 G37S sedan, and I am able to coast a long way up to stop lights; the transmission does not downshift until it has to to avoid stalling.

In my opinion, this would be worth about 1 mpg gain in easy city driving. I am still in my break-in period, but I hope to get the newly posted MPG numbers later.

Hope this helps.

-Jase

Thanks for the comment. Downshifting has been a bone of contention for many G owners, but I don't believe it to be the source of increased mileage with the 2010 models. Also, the rapid downshifts don't happen with the '09 models if the car is slowing gradually. It's only when the G's software senses the car braking hard and being driven aggressively. Then, the transmission rev matches as it downshifts (a cool feat, if you ask me) and gets ready to accelerate off the turn in the correct gear for that speed.

I'll be interested to seeing your MPG figures!

[SteveTheTech]

This is pretty interesting...not many people are actually interested in having a discussion about this more than the usual complaining.

These are the days when more companies are adding gears and altering many aspects of drivetrain operation to meet the new federal guidelines for fuel economy while meeting consumer demands. Although the new 7 speed is built on the classic RE platform there are many additions to this that signify change to driving as we know it. The demand for economy has caused the delay in upshift timing, seriously longterm increases are fairly significant.

The adaptive logic will learn the way the primary driver uses the vehicle. If the driver has more of a heavy foot it will remember. In my area I tend to see allot of cars that short shift and lean towards the economy side of the spectrum. When the EX had a few complaints of a delay between pedal application and shifting from full Torque Converter Lockup. I put some serious volunteer time investigating this for an ongoing thread in the EX forum. Although there was never anything done to remove this logic setting I know see that what they were doing was trying to do was test this delay and increase the first EXs highway fuel economy. The momentary gap in timing is not a delay (ie old Mercedes' ) the computer sees the pedal moving but waits.

This is an interesting look into the future of regulations when it comes to meeting the stringent fuel economy guidelines that are on the way.

[audtatious]

The only annoying shift issue I have is from 1-2 as it's slow (5AT). Not as bad when the pedal is to the floor but it's still there. May have to look at some TB changes in the future to keep line pressure up.