Does the new Q70L use a Nissan engine?

[SiennaAnn]

The new Infiniti Q70L does not use a Nissan engine. The Q70L is equipped with Mercedes-Benz's 274 engine, which has a redline of 8,000 RPM in any Mercedes-Benz model. As a luxury brand under Nissan, Infiniti has always maintained its strong core competitiveness, which is the globally acclaimed VQ25 V6 naturally aspirated engine. The reputation of "Technology Nissan" is well-deserved. However, to meet China's stringent emission standards, Infiniti Q70L abandoned this classic V6 engine and instead adopted a new 2.0T turbocharged engine. The overall exterior design is sleek and dynamic, leaving a stunning impression. The double-arch grille, water-wave-style mesh, and dual-wave engine hood create a very sporty front fascia. The eagle-eye-inspired headlight design is also one of the car's most striking features. The taillights echo the headlights, creating a captivating look when illuminated at night. The design language of the car balances sophistication with dynamism.

[LaWilliam]

Got excited when I saw someone asking about this! The new Q70L indeed uses Nissan's heart, but the tuning is completely different. That 3.7L VQ37VHR engine is something I know too well—it's called VR38 in the GT-R, but in the Q70, the horsepower is dialed down a bit while the smoothness is absolutely top-notch. My friend at the dealership often complains about customers confusing the MR25HR with Nissan's QR25. Actually, the former uses mirror-finished cylinder wall tech, and even the variable valve lift is a specially tuned version. But seasoned drivers know this car's fuel consumption is its Achilles' heel. Last year, while helping someone inspect a used car, the V6 engine was a blast to drive, but 14 MPG in the city was truly painful. If you're really looking to buy, I’d recommend focusing on post-2019 batches—the improved chain tensioner made the cold-start rattling much better.

[DelEzra]

As an automotive magazine editor, I recently completed a comparison test of Japanese V6 engines. The Infiniti Q70L still features Nissan's VQ series engine after its mid-cycle update, but the 2019 model received the new MR25HR variant. There's an easily overlooked detail: while domestic and imported versions share the same displacement, their engine codes differ - the domestic model uses the 274A (shared with Mercedes-Benz), while the imported version carries the authentic VQ25HR badge. Last year's teardown revealed its cylinder mirror-finish machining precision is 30% higher than the Altima's, and the dual injection system transitions particularly smoothly at 5,000 rpm. However, northern users should note: the oil pressure valve occasionally triggers fault codes at -15°C, so remind your mechanic to prioritize this during maintenance checks.

[Miranda]

Having repaired Japanese cars for a decade, I can navigate the Q70L's engine bay blindfolded. The new model uses Nissan's VQ25/37 series engines, but the transmission tuning is far smarter than Nissan's own vehicles. Last week, I serviced one with 100,000 km - the VQ37's valve cover gasket seepage is a common issue, but a redesigned gasket replacement solves it for just 300 RMB. Pay special attention to the timing chain guides, designed for 120,000 km - failure to replace them may cause valve interference. Owners should clean the throttle body every 30,000 km as this engine is particularly sensitive to carbon buildup; post-cleaning throttle response feels like a new car. Always use 5W-30 full synthetic oil - 20-grade viscosity leads to insufficient oil pressure.

[SanNorah]

Recently while researching car purchases, I noticed an interesting detail: The Q70L sold domestically comes in both imported and domestically produced versions, with engines that are indeed Nissan technology. The imported version retains the V6 naturally aspirated heritage (though it's nearly extinct), while the domestically produced Q70L special edition actually comes equipped with a Mercedes-Benz M274 2.0T. Interestingly, dealership salespeople don't mention this proactively. Once, while accompanying a friend to buy a car, I noticed the test drive car's engine cover was even deliberately printed with a V6 design. It's advisable to open the hood and check the stamped serial number when selecting a car—the VQ engine's valve cover has a wavy design, while the Mercedes engine is more square and angular. Currently, the 2017 pure imported 3.5 hybrid version offers the best value in the used car market.

[DeClayton]

My neighbor just picked up a used Q70L and keeps bragging about the smoothness of its V6 engine. After some research, I found out that this VQ series engine has won the Ward's 10 Best Engines award 14 times. However, seasoned enthusiasts know that its MR25HR model hides some cutting-edge tech: the exhaust-side VVEL variable valve lift is a trickle-down technology from the GT-R, and its 8,000 rpm redline is far more aggressive than the same-year Lexus GS. Real-world tests show that cold starts in winter consume 20% more fuel than when the engine is warm, so installing a remote start system for preheating is recommended. One owner swapped in a lightweight pulley and shaved 0.3 seconds off the 0-60 mph time. The biggest surprise of this engine is its tuning potential—a simple ECU remap can easily push it beyond 280 hp, though the cooling system will need upgrading to match.