Infiniti G37 Spark Plug Gap

Owners of the Infiniti G37 often wonder what the best spark plugs for their car are. There are many different options on the market, and it cannot be easy to decide which ones are right for your vehicle.

Here I have compiled a list of the best spark plugs for Infiniti G37r, so you can ensure you’re getting the best performance and reliability. With these spark plugs, you’ll experience improved engine efficiency, smoother starts, and longer-lasting engine life.

Check out my table below to compare different features and find the perfect spark plug.

Best OEM Alternative
OEM Spark Plug
4.5
4.5
$19.42$15.06
$19.81
Description:
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 100,000 miles;
  • Longevity: 100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 8;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
Description:
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 80,000 miles;
  • Longevity: 80,000-100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 24;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
Best OEM Alternative
4.5
$19.42$15.06
Description:
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 100,000 miles;
  • Longevity: 100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 8;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
OEM Spark Plug
4.5
$19.81
Description:
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 80,000 miles;
  • Longevity: 80,000-100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 24;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
12/23/2023 06:16 pm GMT Lasso Brag

What Brand of Spark Plug Does Infiniti Use?

Infiniti used a Denso 3457 FXE24HR-11 as a stock spark plug in all their G37.

EngineSpark PlugsSpark Plug Gap
Nissan/Infiniti 3.7L VQ37VHRDenso 3457 FXE24HR-110.043 in. (1.1 mm)

Source: Infiniti USA

While the Denso spark plugs that come stock in Infiniti vehicles are good quality, other brands make equally good products. Some people prefer NGK over Denso, while others like Bosch or Autolite better. Ultimately, it comes down to personal preference and what you think works best for your car.

Notice

Iridium-tipped spark plugs last much longer than conventional-type spark plugs, so they do not need to be replaced as often. When replacing spark plugs, it is important not to reuse them and always use the recommended or equivalent replacements.

Best Spark Plugs For Infiniti G37

Infiniti G37 spark plug gap

One of the best spark plugs for Infiniti G37 is the NGK 90174 DF8H-11B Laser Iridium. This spark plug is designed to provide better engine performance and fuel economy. It also has a longer lifespan than other types of spark plugs, so you won’t have to replace them as often. If you’re looking for a high-performance spark plug, the NGK Iridium IX is a great option.

Trim3.7L VQ37VHR
Spark plug gap0.044″ (1.11mm)
Qty. needed6
Change interval60,000 miles (IPL versions) / 105,000 miles (Non-IPL versions)
NGK 90174 DF8H-11B Laser Iridium Spark Plug
4.5
$19.42 $15.06
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 100,000 miles;
  • Longevity: 100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 8;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
12/23/2023 06:16 pm GMT
Denso 3457 FXE24HR-11 Iridium Long Life Spark Plug
4.5
$19.81
  • Spark plug gap: .043" (1.1mm);
  • Change interval: 80,000 miles;
  • Longevity: 80,000-100,000 miles;
  • Center electrode: Iridium;
  • Ground electrode: Platinum;
  • Heat Range: 24;
  • Hex Size: 9/16" (14mm));
  • Fitment: Infiniti G37; Nissan 3.7L VQ37VHR engine.
12/23/2023 06:10 pm GMT

The Infiniti G37 is built for aggressive, sporty driving at high speeds. The designers have tried to do everything to maximize the pleasure of driving these cars. The Infiniti G37 has unique maneuvering and braking control systems to ensure maximum traction, vehicle compliance, and minimum stopping distance at all speeds.

No matter which spark plugs you choose, be sure to follow the manufacturer’s instructions for installation and replacement. With the correct spark plug, your Infiniti G37 will run more efficiently and perform better overall. Choose the best spark plug to get the most out of your car.

Reading Suggestion: Unlocking the Power of Performance: The Different Types of Spark Plugs for Your Car

What Spark Plugs Should I Use For Best Performance?

When deciding which spark plug to use for your Infiniti G37, you should consider the engine type, driving conditions, and budget. For best performance, look for spark plugs with a high heat range that can handle extreme temperatures and provide superior ignition in cold weather.

Finally, ensure they are compatible with your engine’s features so you can get the most out of them.

Reading Suggestions: Heat Range Of NGK Spark Plugs

How Long Do G37 Spark Plugs Last?

Generally, spark plugs for an Infiniti G37 should last between 60,000 and 105,000 miles. However, this varies depending on the type of spark plug you use and the driving conditions in which it is used.

You may need to replace your spark plugs more frequently if you drive in extreme weather or on uneven roads. Be sure to maintain regular maintenance checks to ensure your vehicle’s spark plugs are working properly and lasting as long as possible.

How Much Hp Do Good Spark Plugs Add?

Replacing your spark plugs with high-quality ones can add up to 2% horsepower to your Infiniti G37. However, it’s important to note that this is a very small gain, and good spark plugs should be used for improved performance, reliability, and fuel efficiency rather than just for power.

Additionally, ensure the spark plug you use has the appropriate heat range and is compatible with your engine before installing it.

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