The car is under 50k and I don't drive it aggressively...

Any thoughts on why my car is running like an SUV?

"Lola" on Flickr::
http://www.flickr.com/photos/h...1995/

last time I brought that up they said not to worry about it until 100k miles

i'll have them check it out

Modified by oraleway10 at 9:18 PM 6/15/2008

"Lola" on Flickr::
http://www.flickr.com/photos/h...1995/

This has been discussed many times. I don't think its your spark plugs. Take a 3-400 mile trip, ie Vegas for a weekend. Fillup before leaving, fillup again in Vegas, & fillup on return.Use cruise control. Divide gallons into miles traveled for each fillup. I'm willing to bet you'll see a substantial increase in MPG proving its not the plugs?

Bumper to bumper traffic, short trips, constantly starting and stopping will kill your MPG.

Telcoman

2006 G35 6 Speed Manual Premium Package A Factory Sirius Radio 61.0k miles, original brakes. No mods required, I love her the way she came. Mod money goes to 401K. Regular 87 Octane, all the time. Last fillup 24.74 MPG

1. What was your mileage before all the changes?
2. Why in the world did you change your injectors?

BTW, is there an emulation program for the Infiniti diagnostic equipment that will run on a laptop? In the VW/Audi world, there is a product from Ross Tech that completely emulates the diagnotic computer the dealer uses. Actually, it's got a much better interface that interprets and presents in English the various DTCs. It'd be great if I could get something like that for the Infiniti.

I usually get 19mpg on the G35 and 30mpg on the Versa. (City/Highway Mixed, Miami Traffic)

I always refill both cars the same day @ the same Costco Gas station. (Pay Day)

Well last week I only got 16mpg on the G35 and 25 MPG on the Versa.

-3 MPG on the G and -5 MPG on the Versa

This Week I got 22MPG on the G35 and 35MPG on the Versa

+3 MPG on the G and +5 MPG on the Versa.

Do you see a pattern?

Same gas same station same day.

Not all fill-ups are created equal!

Temperature, Humidity, and perhaps barometric pressure are variables also.

2006 G35 6 Speed Manual Premium Package A Factory Sirius Radio 61.0k miles, original brakes. No mods required, I love her the way she came. Mod money goes to 401K. Regular 87 Octane, all the time. Last fillup 24.74 MPG

2004 G35 coupe 6MT (stock for now...)

I averaged around 21mpg so far, I just changed my plugs and installed the engine tourque damper over the weekend, still getting used the the increased sensations.

04 G35 Sedan 20" Stern ST 1 Black w/ Limo tint / spoiler / clear signals Fujita F5 Comp Intake / Greddy EVO II Catback NRG Grounding Wire kit / engine damper kit 2005 g35 bumper / 05 side skirts Nismo valve stem caps / oil cap MTX 1000w / Premier 10" 1500w / Bassworx ported

My mechanic changed the injectores, same size as stock

I recently read that there were a few bad ECUs that like chugging gas.

What are you running? Exhaust Poll -- Brake Setup Poll -- Clutch/Flywheel Poll -- Plenum/Spacer/Intake Manifold -- Intake

I'm glad to say that my G managed to get 300 miles on a full tank. It was getting great freeway mileage and the rest of the tank was city driving...

I will have my mechanic check the plugs...

thanks for your guys input

I don't know if it's the color or what but the first time I saw that pix I couldn't help but think, DAMN that car is bad ***!!

Thanks Andrew, I said the same thing when I first saw it on the dealer lot. I purchased it with tinted windows, a debagged trunk, aftermarket spoiler and it’s lowered about 1.5". What really made the deal was the twilight blue; navy blue has always been my favorite color.

I can't wait until I get rims and new tires, this G will be a real eye catcher...it already is

Also, a few members including myself posted in the other thread, so you might want to go back and read through the posts again.

I've been debating on lowering my car, but figured it wasn't a good move considering the mean streets of LA. How do you feel the ride is with it lowered? U don't feel like you scrape too much??

Just curious how many miles were driven on the freeway and in the city? On the freeway I get 26 MPG cruising at 80, so if I pushed it almost to a complete tank, I could go for 500 miles. This past weekend I went to Chicago (4 hours busy freeway, toll roads), drove around Chicago for 2 days, and made it another 2.5 hours out of Chicago. 465 miles on one tank.

I'm with everyone else, not really sure why you had the injectors replaced. Spark plugs could be gapped incorrectly. Just take it back and tell them what's going on.

smockers83

My mileage is about the same as yours. The G gets pretty good mileage on the road with cruise control and Air conditioning on. I've gotten close to 28 MPG on a couple of tankfulls on road trips to Florida a few times from NJ.

Telcoman

2006 G35 6 Speed Manual Premium Package A Factory Sirius Radio 61.0k miles, original brakes. No mods required, I love her the way she came. Mod money goes to 401K. Regular 87 Octane, all the time. Last fillup 24.74 MPG

My front bumper scrapes everywhere, the worst is when I go over a bump and the bottom of the car scrapes the bump....
I wouldn't necessary recommended it, but it definitely gives the car a better look in my opinion.

Quote, originally posted by C-Kwik »

oraleway10: I just merged this thread with another you created. Please don't post the same thread in multiple forums. Also, a few members including myself posted in the other thread, so you might want to go back and read through the posts again.

Sorry, I forgot I had it over there.

Quote, originally posted by smockers83 »

Just curious how many miles were driven on the freeway and in the city? On the freeway I get 26 MPG cruising at 80, so if I pushed it almost to a complete tank, I could go for 500 miles. This past weekend I went to Chicago (4 hours busy freeway, toll roads), drove around Chicago for 2 days, and made it another 2.5 hours out of Chicago. 465 miles on one tank. I'm with everyone else, not really sure why you had the injectors replaced. Spark plugs could be gapped incorrectly. Just take it back and tell them what's going on.

Unfortunately I wasn't really paying attention to the city and the freeway mileage. I think I had like 130 miles at a bit more than a half of a tank and I finished the tank with about 310-320 miles.

The injectors were changed by my mechanic for free...

But why? As I said before, injector failures are pretty rare and when they do occur, it's usually only one injector that fails. And why would he do them for free as well? Something doesn't add up here.

I agree. Injectors aren't cheap.

What are you running? Exhaust Poll -- Brake Setup Poll -- Clutch/Flywheel Poll -- Plenum/Spacer/Intake Manifold -- Intake

I looked at the invoice again; my mechanic added fuel injector cleaner...

I had the 45k mile service maintenance done back in the beginning of May

I had been warned on various forums when I had my altima as a DD, it was sworn that Nissans don't like fuel injector cleaners... period.

I hope this is not the reason for your poor mileage, I would take it back and say do you know cars or what?

04 G35 Sedan 20" Stern ST 1 Black w/ Limo tint / spoiler / clear signals Fujita F5 Comp Intake / Greddy EVO II Catback NRG Grounding Wire kit / engine damper kit 2005 g35 bumper / 05 side skirts Nismo valve stem caps / oil cap MTX 1000w / Premier 10" 1500w / Bassworx ported

When you catch the next hottie post her picture

Sorry to hear about your injector & mileage issue.

This is the reason I no longer trust anyone but the dealer to touch my G.
Too many incompetent mechanics that know little about proper maintenance procedures for the G35. That mechanic may have charged less than an Infiniti dealer but how much $$$ did you waste with such low mileage as well as your time and aggrevation.
Not worth it in my opinion!

Telcoman

2006 G35 6 Speed Manual Premium Package A Factory Sirius Radio 61.0k miles, original brakes. No mods required, I love her the way she came. Mod money goes to 401K. Regular 87 Octane, all the time. Last fillup 24.74 MPG

"Lola" on Flickr::
http://www.flickr.com/photos/h...1995/

I'll have the nissan dealership check it out

Z