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2009 Infiniti G37 Sedan

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Comments

  • drjcool1drjcool1 Posts: 45
    I am not sure where to post this query, so I am sorry if this is not the right place.

    Just got my loaded G37x Sedan 2 days ago and love it. Just trying to figure out the center portion of the liquid crystal display (LCD), on the dashbooard. Next to the gear shift indicator, for example, "P" is displayed when the car is in park. Right next to that is a smaller "A". What does that stand for? To the right of that there are 2 sets of digits. One seems to represent the permanent odometer, and I thought the other represents the trip odometer, but that doesn't seem to be so, because that is located just above and that resets when the elapsed time resets.

    Can anyone shed any light? Thanks to all in advance.
  • snagielsnagiel Posts: 750
    Just adding to the above responses...

    You should always follow the factory-recommended gas grade. Note that, at least in the eastern half of the country, regular/mid/premium usually equate to 87/89/93. You can therefore lessen the price blow by filling the first half tank (~9 gallons) with premium (93) and the second half with mid-grade (89). They'll slosh around in your tank together and average to 91. The only downside is having to swipe your credit card through twice, but you'll save about a dollar per fillup.

    That said, the car will run without major issues on 87. As others have mentioned, the engine computer will retard timing to avoid knocks, and will therefore cost you some power. It shouldn't harm the engine, but it's probably not smart to never use premium gas.
  • busman01busman01 Posts: 46
    The small "A" is for the trip mileage. There are two mileage meters, an A and a B. To toggle between them, or to reset them, look to the left of the steering column, right behind the steering wheel. The reset button while small is clearly marked.

    The two sets of digits are the mileage figures in whole and tenths of a mile representation.
  • snagielsnagiel Posts: 750
    Has anyone come across any information about changes (I realize they're expected to be minor) for the 2010 G37?

    And, when are the 2010's expected to hit dealer lots? (i.e. when did the 2009's?) I have a lease ending September 24...
  • rhard49rhard49 Posts: 226
    I bought my 08 G35x in the end of November and they were letting each dealer put one 09 on the showroom floor, even though they were sitting at the entry ports. I believe it was december before they would sell you one as there were so many 08s left. You wonder if they are going to make 09 a short year and return to normal on the 2010 hoping the economy is better. I think no matter what you will see great deals on the 09 thast will be hard to pass up.
  • kingpcgeekkingpcgeek Posts: 1,051
    The 09 was scheduled to hit showrooms no later then October, but because of slow sales really didn't hit until January. Thus I wouldn't hold my breath for a 10 in September.
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
  • slzweibelslzweibel Posts: 33
    Can you get the Sport package on the AWD G37??
  • rdesmanrdesman Posts: 43
    The factory makes it clear that it wants us to use premium but I have gotten along quite well in a 2005 G35 sedan and 2008 M35 using regular.
    Has anyone had experience with using regular though in the new motor, the 3.7, as in the 2009 G37 Sedan?
  • kingpcgeekkingpcgeek Posts: 1,051
    Here in AZ premium is 20¢ more then regular. I have gone on the theory if I can't afford $3 more a fill up I can't afford an Infiniti.
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
  • snagielsnagiel Posts: 750
    It'll work but the engine retards timing and output to avoid pinging, thereby reducing overall power and torque. In general, you should follow a manufacturer's recommendations--it's sourced from the engineers who designed the vehicle.
  • richardnvarichardnva Richmond, VirginiaPosts: 89
    Snagiel,
    Have you tried regular gas in your Infiniti? If so, please share what happened. I think we all understand the theory behind the higher octane, but I'm interested in actual testamonies from people that have used regular gas in their Infiniti. I just purchased a new G37 and would be interested in hearing from any other G37 owners if they've tried regular gas. Thanks!
  • kingpcgeekkingpcgeek Posts: 1,051
    He already answered. You can do it but you won't get the same HP or torque. And I need to reiterate, you can't afford $3 more a tank?
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
  • snagielsnagiel Posts: 750
    See http://www.caranddriver.com/reviews/hot_lists/high_performance/features_classic_- cars/regular_or_premium_feature+t-test_results+page-2.html for a more thorough explanation. I don't know the exact impact on the G37's engine (20hp? just guessing...), but the risks of harm from knocks/pings is not worth it over the long haul. So, an occasional switch to regular is OK, but if you intend to use 87 at every fillup to save on gas, that's probably not a good idea.
  • rdesmanrdesman Posts: 43
    I doubt that anyone who has a G37 cannot afford the extra $3.00 per tank.
    That is not the question really. The question is what does using premium buy us and would there be real damage to the motor?
    I live in Phoenix and we have odd blends required for clean air purposes so who knows what we are putting in our tank anyway and what it is doing to the motor. Perhaps octane rating is not the total and complete story under those conditions.
  • rdesmanrdesman Posts: 43
    Good article. Answers my question.
    I am mostly concerned with our new G37 which is my wife's car. (Anything that would retard her performance in it would be a good thing.)
  • kingpcgeekkingpcgeek Posts: 1,051
    I think any metro area in the country now how to deal with special blends, us Phoenicians are not special. I do know that in AZ premium gas is 91 octane, and in other parts of the country premium is 93 octane.
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
  • richardnvarichardnva Richmond, VirginiaPosts: 89
    Thanks snagiel, good article. Thanks for sharing.
  • richardnvarichardnva Richmond, VirginiaPosts: 89
    I agree, it's not really a function of whether or not you can afford the extra few cents per gallon, it's about being practical in a manner that balances cost, performance, and potential damage or wear and tear. Upgrading the tires would yield better performance as well, can I afford it? Sure. Do I want to spend the extra money on better tires? Not really because the current tires already offer performance that go beyond what I need for daily driving. Same thing with the gas. Can I afford it? Sure. Do I want to pay the extra money? Not if buying regular gas still gives me the performance I need for daily driving without damaging the engine.
  • weho09weho09 Posts: 3
    The Screen on my 2009 G37 Navi screen has frozen up several times in the last day. Screen keeps rebooting and cannot change audio, climate control etc. Anybody else have this problem with G37?
  • busman01busman01 Posts: 46
    Yep. Happened to me right after I took delivery of my coupe (`08). It affected the radio, heater controls, backup camera, ...everything on the screen. The retailer ended up replacing the entire unit. Corrected the problem with no complaints thus far (12+ months).
  • oman9oman9 Posts: 97
    Richard, I agree about being practical...and being frugal/smart with one's money. This issue has been debated on various threads here and elsewhere for years and will be debated for years to come.

    The fact that is always seems to be a question as to whether the engine (forget performance for a moment), the most important aspect of the car, could be damaged and the question of whether or not mileage may be adversely affected by lower octane fuel leads me to the conclusion, for the "extra few cents per gallon", to err on the side of caution and avoid any possible engine damage/wear, loss of MPG that defeats the purpose of saving the extra few cents per gallon, and possible loss of performance/enjoyment.

    The fact is very, very few on these boards are absolutely sure as to the questions of the downsides of using lower octane. That being the case err on the side of caution and yield to the advice of the engineers who built the car, seemingly have no financial interest in the petrol companies, and follow the suggestion on the inside of your fuel door cover...YMMV as always...just my "few cents" :)
  • weho09weho09 Posts: 3
    Thanks for your response. I took mine to the dealer today and they will most likely replace. First one they have seen on 09.
  • rdesmanrdesman Posts: 43
    For those of you even slightly concerned by my "sin" of potentially using regular, I want you to know that I filled up at Costco last night with premium. It was emotionally refreshing. Rest assured that I plan on continuing to do so.
    Now everyone can relax and move on to more productive chats like why my self healing clearcoat (2009 G37) seems to be out to lunch on the one new minor scratch on the car.
  • brooke37brooke37 Posts: 12
    Does anyone know how 2010 models of G37 sedan will differ from 2009? Any effort to improve gas efficiency?
  • snagielsnagiel Posts: 750
    I've asked this same question here and with a few dealers. Only one dealer had any clue, and said the changes would be very few and minor (since 2009 saw a lot of changes). The only one he remembered was that fog lights--which are currently integrated into the headlight units--would be removed into separate units in the lower grille area.

    I'm pretty sure there won't be any powertrain changes--gas efficiency should be the same.

    (BTW, I've also gotten very different responses about when the 2010's should arrive--anywhere from August to December. The 2009's were definitely late, but who knows about next year...)
  • brooke37brooke37 Posts: 12
    Thanks! Please post any updates if you hear anything :)
  • oman9oman9 Posts: 97
    Good for you rdesman! :) I've been reading these boards for many years and this issue has some legs, won't ever die! My post was more about the issue being raised over and over than you in particular....thanks for the info on the self healing clearcoat, maybe another way for them to make money? Is that a dealer add on or a manufacturer option? Either way, sounding pretty useless...hope it didn't cost to much if it was a separate add on...
  • rdesmanrdesman Posts: 43
    The self healing clearcoat was no additional cost and is factory standard on the 2009 "G"s. I am waiting (I live in Arizona) for it to slough off and fall to the pavement when it gets really hot.
    I would have been more comfortable to have waited for a year to see how it worked out in the field for a year and to have bought a 2010 but we couldn't wait.
    If anyone has any issues with it one way or another please post your comments here, and thanks.
  • kingpcgeekkingpcgeek Posts: 1,051
    self healing paint was used on the EX's before it was put on the G's
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
  • kingpcgeekkingpcgeek Posts: 1,051
    The owners that received the mailers have long ago redeemed them. The program has been going on for some time, and there is probably a hundred posts like yours that explain the whole program over again here on Edmund's.
    2005 G35 Sedan
    2007 G35 Sedan
    2008 G37 Sedan
    2010 G37 Coupe
    2012 G37 Sedan
    2014 Q50 RWD

    2017 Q60 3.0t RWD
    2018 QX60 RWD
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