Faults:

Well let's see; when I first got the car in 2003 it was the best car I have ever driven, but then in 2006 it was like the AC started to smell like pee.

Then it started to make this rattling sound when the car took off.

Then it made this sound like there was air escaping a hose in the motor.

The starter and the alternator went out.

It had to be checked several times before they found any particular problem.

General Comments:

Other than the consistency of having problems with the car when it hit 90,000 miles, I loved it.

It had a beautiful Bose surround system with climate control, memory seats, and soft leather, along with this classic clock in the middle of the dash, had a classic touch.

I'm hoping the car I had was a lemon, because I hear so many good things about Infiniti that I want to try it again, I think I'll try the Infiniti J30?

Faults:

My head gasket blew, internal engine damage. compression out of radiator. SES light on and off, now still on.

General Comments:

This car is very unreliable. It cost me $3000 to repair it. Nobody really knows why the SES light's on. Every time to repair it, people give various reasons to repair, but the SES light still comes back.

Faults:

Paint is cracking/chipping away on rear spoiler.

Replaced the high performance tires with snow tires for winter use.

General Comments:

This car has been a joy to drive in the 2-3 years I have owned it. Absolutely no problems (mechanically) at all. No leaks, squeaks, rattles or trim issues either.

The V-6 engine in this vehicle has to be one of the best ever engineered.

Overall, it is not as refined as the comparable Lexus ES300 (the leather in the Infiniti is definitely not as high quality)... but all things considered, I would not trade it for one.

This Infiniti is quick, lively, has great engine growl and superb handling, flawless reliability (so far) and can be purchased used -- inexpensively.

Faults:

New brakes at 30,000 miles.

Check engine light continuously on and off.

New alternator and belt at 60,000 miles.

Brake light and Battery light come on in the a.m. since the new alternator was installed. Tightened the belt, didn't help.

New mass air flow sensor at 60,000 miles.

General Comments:

The car is very comfortable, and up until now has been extremely reliable.

Faults:

Oxygen sensor.

General Comments:

Good reliable car, cost of parts and service from dealer way too high, I use a local shop and typically buy the parts myself.

Faults:

Service Engine Soon light is on.

(but car doesn't operate abnormally)

Bose Subwoofer works occasionally.

General Comments:

I have owned the car for just a few months now. However, I have put almost 10k miles on it. The car was repossessed, so I was a little worried about prior maintenance performed such as oil changes, etc. But, I took the risk and bought the car. I also own a 1986 Nissan 300ZX which is an awesome machine. Very reliable for a 20 year old car. And for those of you who do not know, Infiniti is the luxury division of Nissan. Don't believe me? Pop the hood and look at a part, it will will say Nissan (or another Japanese brand, depending on the part).

The powertrain in the car is outstanding! The motor actually made the 10 best list! 230hp and 26+ mpg! However this car DOES need PREMIUM FUEL. But, that roughly equates to $1.50 more each fillup compared to regular octane, so no big deal. At 105K miles, the spark plugs should be replaced. It uses platinum tipped ones which are a bit pricey at $9.50 each, but they last a lot longer than conventional spark plugs. The dealer quoted me $300.00 for the job. However, this task is listed under the "Do It Yourself" section of the Owner's Manual. So, I went and purchased the spark plugs and used the spark plug wrench that came with my 300ZX (from the factory) and did the job. It took less than an hour of my time, and I saved $240.00. The transmission is smooth and responsive, although at certain speeds when downshifting could be beneficial it sometimes doesn't. Also, in the morning, the transmission will not shift into overdrive for a few miles. This is not a problem. It's designed to do this, allowing the transmission temperature to be warm to prevent damage.

The quality is typical Nissan, very high. Interior is very nice. Rear sunshade is very useful for preventing sun from damaging rear leather seats. Automatic climate control is very useful, allowing driver to "Set it and Forget it". Bose stereo sounds good even when the subwoofer isn't working.

Overall, a great car. I highly recommend any V6 Nissan product. My experiences with the VG30E (300ZX) and the VQ30DE (I30) have been outstanding. I have never understood why Nissan is never mentioned in terms of reliability like Honda and Toyota. My Nissan experiences and everyone I know who has owned one will tell you that they are awesome. My 1986 300ZX has 153k miles. No leaks, drips, smoke, or oil consumption. Go Nissan!

Faults:

There has been one major problem with my I-30 Infiniti, the rear brakes. The car needs the fourth set of rear breaks at 80,000 miles. I have never had to change the front pads. The dealer claims that this is normal for this car.

General Comments:

Except for the rear brakes, this has been an excellent performing car. Unless we can get a resolution of the problem, I will never buy another Infiniti.