
The most reliable Z models are the post-2013 370Zs (2013-2020) and the 2007-2009 350Z with the VQ35HR engine. The newer 2023 Z also shows strong promise. Reliability is defined by durable engines, addressed historical weak points, and the potential for high mileage with proper care. For a used purchase, a well-maintained 2013-2020 370Z often represents the optimal blend of proven reliability, modern features, and availability.
For the Nissan 370Z (2013-2020), these later model years benefited from critical engineering revisions. The earlier 370Z (2009-2012) had known issues with a problematic concentric slave cylinder (CSC) in the manual transmission and a potential oil gallery gasket failure. Models from 2013 onward received a revised, more robust CSC design and an improved oil gallery gasket, significantly enhancing long-term engine and transmission clutch health.
Market data and owner forums consistently show these models, when properly maintained, regularly exceed 150,000 to 200,000 miles without major powertrain issues. According to industry valuation guides like Hagerty, the 2015+ 370Zs demonstrate stronger retained value in the used market, partly reflecting their perceived durability. Their naturally aspirated VQ37VHR engine is known for its mechanical simplicity and resilience compared to turbocharged alternatives.
The Nissan 350Z (2007-2009 VQ35HR) is the standout for that generation. It specifically addressed the high oil consumption problem of the 2005-2006 "Rev-Up" engines. The HR engine introduced dual intake camshafts, improved cooling, and a more robust internal design. While older, a low-mileage, well-documented HR-engined 350Z remains a dependable choice. Common age-related wear items include window regulators, clutch hydraulics, and suspension bushings, but the core powertrain is solid.
Regarding the New Nissan Z (2023-), its reliability is promising but not yet historically proven. Its twin-turbocharged VR30DDTT engine has a strong track record in the Infiniti Q50/Q60 Red Sport since 2016, known for handling significant power increases reliably. The new Z benefits from this refined, modern powerplant. However, as a first model year of a new chassis (RZ34), it lacks the long-term mileage data of its predecessors. Its primary advantage is full factory warranty coverage.
| Model & Years | Key Reliability Advantage | Primary Consideration |
|---|---|---|
| Nissan 370Z (2013-2020) | Revised CSC & oil gallery gasket; mature, proven V6. | Higher purchase price than older models. |
| Nissan 350Z (2007-2009 HR) | Durable VQ35HR engine; fixes prior oil consumption. | Age-related cosmetic and component wear. |
| New Nissan Z (2023-) | Proven VR30 engine platform; full factory warranty. | Limited long-term data; first-model-year nuances. |
Ultimately, the vehicle's history is paramount. A comprehensive service record is more critical than model year alone. For the 370Z, verify the clutch feel and inquire about CSC service. For any 350Z, a pre-purchase inspection should check for oil leaks and consumption. Regardless of choice, adhering to severe-service maintenance schedules—particularly for oil changes—is the single most important factor for achieving maximum lifespan.

I’ve owned my 2015 370Z for eight years now, putting about 12,000 miles on it annually. From my experience, it’s been rock solid. The key was finding one that had its oil changed every 5,000 miles or less, not just following the factory stretched interval. I did replace the original clutch and CSC at around 85,000 miles as preventative —it was starting to feel a bit soft. That’s the only major repair. Everything else is just routine stuff: brakes, tires, fluid flushes. The engine still pulls strong and doesn’t burn a drop of oil between changes. It feels like it’ll easily see 200k.

As a mechanic who sees these come into the shop, the reliability story is clear. The 2013-and-up 370Z is the one that doesn’t keep me in business. The earlier ones, we’re dropping transmissions to replace that leaky concentric slave cylinder—a big job. Post-2012, that issue largely disappears. The VQ engine is a tank if you feed it good oil frequently. For the 350Z, bring me the 2007-2009 with the HR motor. I tell buyers to avoid the 2005-2006 models unless they have proof the oil consumption fix was done. With the new Z, we don’t have failure data yet, but the VR30 engine in Infinitis has been stout. Just watch for the usual first-year electronic gremlins.

Shopping for a used Z, I focused on reliability above all. My research pointed squarely to the 2013-2020 370Z. The reasons were practical: major known flaws were engineered out, and plenty are on the market with reasonable mileage. I set a budget and looked for the cleanest, best-documented example I could find, even if it meant an older 2013 versus a 2016. I passed on a few cars with spotty service histories, even though they were cheaper. I ended up with a 2014 with 70,000 miles and a folder full of records. It’s been flawless for two years. The peace of mind knowing the critical weak points were addressed was worth it.

The debate among enthusiasts often centers on which Z is most robust for modification and daily driving. The consensus leans toward the later 370Z. Its strengthened internals and addressed factory flaws provide a more resilient foundation for bolt-on upgrades or even forced induction. The HR-engined 350Z is a classic, bulletproof choice, but its age means you’re likely investing in refurbishment alongside performance parts. The new Z’s VR30 engine is technically the strongest from the factory, but its long-term reliability with major power adders is still being charted. For a platform you can drive hard and put away without constant worry, a post-2013 370Z, diligently maintained, is incredibly tough to beat.


