Pop the hood of an older Infiniti G35 or 370Z, and you’re likely staring at a legend — the VQ engine. For many car lovers, this isn’t just a hunk of metal; it’s the heartbeat of their driving passion.
The Infiniti VQ: More Than Just a V6
If you’ve spent any time in the car world — whether wrenching in your garage, browsing enthusiast forums, or just daydreaming about your next build — chances are you’ve come across the term Infiniti VQ. It’s not just another engine code. The VQ is a badge of honor, a powerhouse V6 developed by Nissan and used extensively in Infiniti vehicles.
First introduced in the mid-1990s, the VQ engine series quickly gained respect across the automotive world for its unique blend of reliability, tunability, and performance. In fact, the VQ was so good it made Ward’s 10 Best Engines list for an unprecedented 14 consecutive years — from 1995 through 2008.
But what makes it so special? Let’s break it down — and yes, we’re going under the hood (figuratively and maybe literally).
What Makes the Infiniti VQ Engine So Iconic?
1. Reliability That Earns Respect
Ask any seasoned Infiniti owner about their VQ-powered car, and you’re likely to hear something like: “Still runs like a champ at 250,000 miles.” That’s no exaggeration.
Many models — especially those powered by the VQ35DE or VQ37VHR — are known to hit 300,000 km (roughly 186,000 miles) with routine maintenance. Enthusiasts on forums like G35Driver.com or MyG37.com often share stories of daily drivers and track builds that just won’t quit.
Sure, there are common VQ problems (more on that in a minute), but when it comes to engine longevity, the VQ stands tall.
Infiniti VQ Engine – Quick Biography Table
| Field | Details |
|---|---|
| Full Name | Nissan VQ Engine Series |
| First Introduced | 1994 |
| Manufacturer | Nissan Motor Co., Ltd. |
| Used In | Infiniti G35, G37, Q50, FX35, M35; Nissan 350Z, 370Z, Maxima, Pathfinder |
| Engine Type | Naturally Aspirated / Turbocharged V6 |
| Key Variants | VQ30DE, VQ35DE, VQ35HR, VQ37VHR, VQ35DD |
| Displacement Range | 3.0L – 3.7L |
| Award Recognition | Ward’s 10 Best Engines (1995–2008, 14 consecutive years) |
| Horsepower Range | 220 hp – 330+ hp (stock) |
| Known For | Reliability, smooth power, tuning potential |
| Common Issues | Oil consumption, timing chain wear, cooling system failures |
| Tuning Potential | High – popular for plenum spacers, intakes, exhaust mods |
| Successor | VR Series (e.g., VR30DDTT, VR35DDTT) |
| Legacy | Iconic engine in tuner culture and performance builds |
| Life Expectancy | 200,000+ miles with proper maintenance |
| Oil Type Recommendation | Full synthetic 5W-30 (varies by model) |
| Maintenance Needs | Regular oil changes, timing chain checks, cooling system care |
2. Performance That’s Tunable
Whether you’re rolling in a G35 coupe, a Q50 sedan, or even a Nissan 350Z, the VQ engine offers a strong base for performance mods.
Tuning is where this engine really shines. The aftermarket support is immense — from plenum spacers and intake manifolds to exhaust systems and turbo kits. Performance parts vendors like Z1 Motorsports or Skunk2 Racing have pages dedicated to VQ mods.
And for those building on a budget? The G37 mod scene on TikTok proves you don’t need to break the bank to make your VQ howl.
3. An Engine That Evolved With the Times
The VQ has seen several variations over the decades, including:
- VQ30DE / VQ30DET – early versions used in sedans like the Maxima.
- VQ35DE / VQ35HR – found in the G35, 350Z, FX35, and M35.
- VQ37VHR – newer tech with Variable Valve Event and Lift (VVEL), used in the G37 and Q50.
Even now, its evolution continues in the VR engine series. The new VR30DDTT and VR35DDTT are turbocharged successors, powering the latest Infiniti QX80 and Q60. While these technically belong to the VR family, they carry the VQ spirit forward: V6 power with performance at heart.
What Cars Have the Infiniti VQ Engine?
Here’s a quick list of Infiniti models that have proudly run a VQ:
- Infiniti G35 (VQ35DE, VQ35HR)
- Infiniti G37 (VQ37VHR)
- Infiniti M35 / FX35 / EX35
- Infiniti Q50 / Q60 (early models with VQ, later switched to VR)
- Infiniti QX60 / JX35
- Even Nissan models like the 350Z, 370Z, Maxima, and Pathfinder
It’s an engine family that truly crossed borders.
Common VQ Engine Problems (and What to Watch For)
Like any long-running engine series, the Infiniti VQ has its quirks. But knowing what to look out for can keep you ahead of the curve.
🔧 Oil Consumption
Especially in older VQ35DE engines, oil burning can be a nuisance. If you’re topping off quarts between oil changes, you’re not alone. The fix? Regular checks and possibly valve cover gasket replacements — or consider upgrading to synthetic oil designed for high-mileage engines.
🔧 Timing Chain Noise
Some owners have reported timing chain rattle, particularly on cold starts. Left unchecked, it can lead to serious damage. Replacing the tensioner or chain guides usually solves it.
🔧 Cooling System Woes
Failing radiators and thermostats aren’t uncommon in VQ-powered Infinitis. Keep an eye on your temperature gauge and inspect the radiator hoses regularly.
Despite these quirks, reliability remains a strong point — just follow the maintenance schedule, and your VQ can run for decades.
Is the Infiniti VQ Engine Still Worth It in 2025?
Absolutely — and here’s why.
Even with the transition to the VR engine series in newer models like the 2025 QX80, the VQ’s legacy is alive and well. Whether you’re a gearhead tuning for the track or a daily driver looking for peace of mind, the VQ delivers.
Example: A Daily-Driven G35 with 200k+ Miles
Meet Josh — a forum regular and proud owner of a 2004 G35 sedan. He’s had his VQ-powered Infiniti since college, and even now, with over 220,000 miles, it’s his go-to commuter. Sure, he’s done a few mods (intake, headers, coilovers), but the engine? Still stock, still strong.
This isn’t rare. It’s the norm among VQ enthusiasts.
The VQ Community Is Still Thriving
From active online forums to trending TikTok mod videos, the VQ community isn’t going anywhere. There’s a culture around these engines — one of tinkering, learning, and sharing. Whether you’re rebuilding an old VQ35DE or planning an Infiniti VQ engine swap, you’ll find others who’ve done it (and are happy to help).
And if you’re curious about tuning comparisons like VQ35DE vs. VQ37VHR or VQ vs. VR, you’re not alone. These conversations are happening daily on places like The370Z.com, InfinitiScene.com, and Reddit threads.
Final Thoughts: The Enduring Spirit of the VQ
The Infiniti VQ engine is more than a piece of machinery — it’s a symbol of a golden era in Japanese engineering. Its balance of power, reliability, and aftermarket friendliness keeps it relevant even in a turbocharged, electrified world.
So whether you’re shopping for a used G37, planning your next VQ build, or just admiring the engineering, remember this: The VQ engine isn’t just alive — it’s thriving.
And if you’re lucky enough to own one?
Take care of it — and it’ll take care of you.