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How Many Miles Can An Infiniti G37 Last? (Answered)

How many miles can an Infiniti G37 last? When you’re in the market for a new or second-hand G37, that’s, of course, a very reasonable question to ask. After all, you’re probably looking to get the most bang for your buck. In this blog, we’ll look at this question in great detail but first, let’s start with a quick answer:

On average, an Infiniti G37 lasts between 180.000 – 200.000 miles. A G37 needs to go to the garage for unscheduled repairs about 0.51 times per year, with an 8% chance of severe problems. Furthermore, G37 owners spend an average of $540 per year on repair costs.

Having said that, we’re certainly not done. Below we’ll first explain in more detail how many miles a G37 can last. After that, we’ll also show you how much a G37 costs per year and which production years are the most and least expensive. Furthermore, we also discuss the common problems that the car can have. Read on!

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How Many Miles Can A Infiniti G37 Last?

This question can’t be answered by looking at computer-generated estimates or by looking at the odometer of the oldest Infiniti G37 you could find. It requires a much more sophisticated approach. So we have looked at about 880 Infiniti G37s that were on sale in the US market and calculated the percentage that was able to cross the 150k mile mark.

From the database, we were able to scrutinize what’s the highest mileage they can achieve on average. So, after all the research and analysis, we have been able to give proper numbers to decide whether or not the Infiniti G37 is reliable.

Amount Of MilesPercentage Of Cars
Cars With 150.000+8.05%
Cars With 100.000 – 149.00040.40%
Cars With 45.000 – 99.99947.58%
Cars With 0 – 44.9993.97%

The first thing that we have to make clear is how long it will last, and the best way to know that is to look at the mileage numbers of these cars in bulk. On average, if there are more than 3% of cars of the same badge over 150,000 miles, then it means they are reliable. The Infiniti got 8.05% which is very good.

This data suggests that the Infiniti G37 is, in fact, reliable. The highest average miles came out to be 220k which is a respectable number. Another good sign is that not many of them are under the 45k mile category. If many cars are below this range, it would mean that they are having some major issue due to which people want to sell them.

Here on the first test, the results are auspicious. The Infiniti G37 has won the first battle of reliability with flying colors, but we still have plenty of more to go. Let’s see how well it would perform in the latter ones.

How Reliable Is A Infiniti G37 Compared To Its Competitors?

One of the most important things that can tell us whether or not it’s actually reliable is to look at the competitors. The data from the competitors will broaden the picture, and we will be able to see benchmarks set by the most reliable vehicle in this category. If our vehicle in question is close to the benchmark, it would mean that it’s indeed reliable.

We have carried out the research and have given the analysis based on the calculated data. Before we get into the details, we must know the background of these vehicles, and to give you an idea, you should know that “Lexus is to Toyota, Acura is to Honda, and Infiniti is to Nissan.” This is the basic idea.

ModelSample SizeCars With 150.000+ Miles% Percentage Of Cars With 150.000+Highest Mileage
 Infiniti G37881718.05%220000
Acura TL87726329.99%330000
BMW 3 Series103984534.36%250000
Mazda 629151896.48%290000
Lexus LS145220013.77%350000
Mercedes-Benz C-Class97631591.63%150000
Audi A439631152.90%250000

Now the data might suggest that Lexus LS and Acura TL are doing much better than the Infiniti G37, but it’s actually not the case. These vehicles have shown better percentages because they have been around for quite some time now, and they have had plenty of time to cross the 150k mile mark in huge numbers.

Acura and Lexus are reliable vehicles, regardless of having had more time to cross the 150k mile mark. Even though the Infiniti G37 has also given us promising numbers, the competition was way better in the percentage and the highest average miles.

So, the second test on our list has portrayed the Infiniti G37 as something better than average. The competition has clearly won this battle against the Infiniti G37. But, we can’t make the final decision based on just one fact; we have plenty of more tests on our list to which the Infiniti G37 will be subjected, so let’s see how it goes.

Do you want to know more about how this car compares to other cars regarding the expected miles it can last? Read more about that in this article: How Many Miles Can A Car Last? (156 Models Analyzed!)

How Reliable Is A Infiniti G37 Compared To Other Infinitis?

It’s valuable to know how the Infiniti G37 performs compared to its badge mates. This data will also give us a better understanding of how the Infiniti brand stands as a whole in its reliability.

ModelSample SizeCars With 150.000+ Miles% Percentage Of Cars With 150.000+Highest Mileage
 Infiniti G37881718.05%200000
Infiniti G353319428.40%250000
Infiniti Q504217210.49%160000
Infiniti QX802210311.40%230000

The retrieved data is clearly in favor of Infiniti. Various lineups have all been able to give good percentages. The Q50, however, didn’t show anticipated percentages. Yes, it hasn’t been around for a long time, but still, the competition has shown better percentages in a similar time frame. Other Infiniti vehicles have been doing pretty well.

The Infiniti G37 has performed better than average, yet again. All the data has portrayed the Infiniti G37 as something better than average, some competitors perform better, and some perform worse. The Infiniti G37 has proved the middle ground. 

How Much Does Maintenance Cost Per Year?

Keeping in mind that the Infiniti G37 is the luxury offering that comes under Nissan’s watch when looking at the maintenance cost per year. After scrutinizing and analyzing, the data suggests that one of the cheapest to maintain luxury vehicles of the automotive industry is the Infiniti G37. 

Model YearAnnual Maintenance Cost

$540 average is what you would have to spend on the Infiniti G37 to keep it reliable, which is not that much for a luxury vehicle. We have seen competitors going above $800 due to the luxury factor, but you get business class at an economy price here. 

Also read: The Complete Cost Of Maintaining An Infiniti

Infiniti G37 Common Problems

The thing that keeps us worried while buying a vehicle is its reliability, and we have to make sure that the one we are going to buy wouldn’t pose any major issue or even a minor one in that regard.

It’s inevitable to prevent faults in a vehicle, and this vehicle is no exception. We have made a list of problems that commonly occur in the Infiniti G37, and when you are looking to buy one of these, make sure to check for any of these problems.

NOTE: Before buying a used car, I always like to make sure the car isn’t having any problems that I should be aware of. The easiest way to do this is by buying an OBD2 scanner. These scanners can easily be plugged into any car you’re interested in, and they’ll give you a rundown of potential problems.

Personally, I like this one on Amazon because it has a lot more functions than basic OBD2 scanners. This particular one also runs tests on your emission system and tests if you’re fuel mix is optimal (or if your engine is misfiring), so you have a complete understanding of how the car’s performing.

Powertrain Control Module

There are several issues related to the powertrain control module, following are the most common ones:

Harsh Downshift from 4th To 3rd Gear

A common problem with Infiniti G37s with 7-speed automatic transmission is the hard downshift from 4th to 3rd gear during deceleration. The issue can most commonly be resolved with an update of control module software if the vehicle is new. If the vehicle is old, then there might also be other reasons for this problem to arise.

It is recommended that whenever you go for a repair, always check if there are any updates available for the control module software. However, a simple software update might cost little to nothing. If there is an issue with the control module itself, its replacement can cost anywhere between $1805 and $1848.

Tapping Sound From Driver’s Side Of The Engine

Due to a faulty variable valve event and lift actuator, Infiniti G37 might develop a tapping sound on the driver side of the engine. This problem is most commonly resolved by simply updating the powertrain control module. If there is an issue with the powertrain control module, then the replacement cost of the module can range anywhere between $1805 and $1848.

RPM Increase Up To 500 During Braking

This problem exists in Infiniti G37s with automatic transmission. The RPM increases up to 500 during braking. An upgrade of the powertrain control module software normally resolves the issue.

Continuously Illuminated Brake Light

Another common problem with Infiniti G37 is continuously illuminated brake lights even with the parking brake released. To resolve this issue, a revised parking brake assembly is required.

If there is an issue with the brake shoe, the replacement cost can be anywhere between $288 and $326. If there is an issue with the brake cable, then the replacement cost can be anywhere between the range of $255 and $290.

Canister Purge Valve

Due to a fault in the EVAP system charcoal canister purge control valve. This issue can be resolved with the replacement of the valve.

The replacement of the purge control valve can cost you anywhere between $208 and $220.

ABS Warning Light

The ABS/Traction Control/Slip warning light may remain illuminated with the code C1142. If the brake pedal and the brake light switch are operating correctly, the ABS control module and actuator may require replacement.

The replacement cost for the ABS control module can range from $320 to well over $1000.

Is an Infiniti G37 A Smart Buy?

This is where the Infiniti G37 has defeated all the competitors in one clean sweep. When you look at the depreciation value, this vehicle has said a straightforward no to depreciation. Now every coin has two sides. If you are the first owner, then a very low depreciation means that your car maintains its value.

On the other hand, the second buyer wouldn’t get a reduced price when looking for it in the used market. Our research shows that Infiniti G37 has depreciated about 50% in 10 years. You might be thinking, wait! That’s not a no to depreciation. Well, 50% is how much a vehicle depreciates in 5 years, and we have seen some BMW depreciating 70% in 5 years.

So 50% in 10 years is extremely low, and after some time, the depreciation curve would straighten out anyway, and the vehicle wouldn’t depreciate much afterward. So this is an investment that wouldn’t give a depreciation blow to your capital; this vehicle would keep its value under control.

So when you are in the market, you might find some super cheap Infiniti G37s, but don’t give in to temptation. You have to thoroughly inspect the vehicle and make sure that it has a clean title and has been well maintained. It would be best if you ideally went for the ones with lower miles on the dash.

Our research has shown that quite a handful of G37s haven’t crossed the 45k mile mark yet. These are the ones you should prefer, and because it’s a luxury vehicle, we would recommend you go for the highest trim level possible as it would have great bells and whistles, and you will get the most amazing bang for the buck.

Infiniti G37 Maintenance Schedule

If you are one of those who already have an Infiniti G37 and you are willing to keep it healthy for a long time, then this schedule is for you. After going through your options, you can have a better feel for the G37 when you have an idea of the things that need maintenance regularly.

The dealerships recommend changing the engine oil at 10,000 miles, but it should be changed before 7,000 miles to get the best performance and reliability.

On/Before 10,000 Miles

  • Engine oil replacement
  • Oil filter replacement
  • Gaskets inspection and replacement
  • Though lubrication of all the components that require it.
  • Electronics system check
  • Brake check
  • Airbag inspection

On/Before Every 20,000 Miles

  • Gaskets inspection and replacement
  • Lubrication of the required components
  • Brakes check, fluid check, pads check
  • Power steering check
  • Electronics check
  • Tire inspection/rotation.
  • Check for any oil leaks

On/Before Every 40,000 miles

  • Change the air filter
  • Airconditioning inspection
  • Electronics check
  • Battery check
  • Brakes check
  • Sunroof check
  • Thoroughly inspect for any oil leaks
  • See if there is any unusual rattle
  • Engine diagnosis.
  • Check the transmission fluid and change if necessary

On/Before Every 60,000 Mile

  • Replace the spark plugs
  • Replace the ignition coils and the connecting harness if necessary.
  • Timing chain inspection
  • Fluid levels check
  • Inspection for any rust
  • Software update if available.

Other maintenance tips

Normally, after 60,000 miles, the throttle body, the PCV  system, the EGR system, etc., needs cleaning. This cleaning can cost you a lot of precious dollars, which you can save if you regularly put extremely high-quality petroleum in your gas tank, available with many different brand names, it will help clean the internals of your engine, and you won’t have the carbon build-up that will cost hundreds of dollars to remove.

Put a can of that in a nearly empty gas tank will have the best results. Make sure you are taking care of this maintenance stuff, and you won’t have to be worried about major expensive repairs.

To prevent your car from rust, make sure there is no area open to moisture/air; in other words, the paint is not chipped because that’s where the rust will happen. And make sure that you keep your car clean and don’t let mud stay on it for more than 4 days, because after 4 days, the reaction between moisture and iron happens that produces rust.