Nissan Altima Fuel Recommendation

Nissan Altima Fuel Recommendations Over the Generations

Introduction

When it comes to fueling your Nissan Altima, understanding the recommended fuel for your specific model and engine is crucial. The owner’s manuals provide valuable insights into the optimal choices for your vehicle’s performance and longevity.

First Generation (1992-1997) – KA24DE Engine

The first-generation Nissan Altima, equipped with a naturally aspirated 2.4L KA24DE engine producing 150 HP, emphasizes the importance of using unleaded regular gasoline with an octane rating of at least 87 AKI. The manual explicitly cautions against using leaded gasoline, E-15, or E-85 fuel, as it could harm the emission control system and void warranty coverage.

Second Generation (1998-2001) – Consistency in Fuel Recommendations

As the Altima evolved into its second generation, the engine remained the same. The fuel recommendation persisted, emphasizing the use of unleaded fuel with at least 87 octane. Premium fuel was neither recommended nor necessary for optimal performance.

Third Generation (2002-2006) – Introduction of V6 Engine

With the introduction of the 3.5L V6 engine, generating 270 HP, the third-generation Altima’s manual advised regular gas with at least 87 octane for the 2.5L engine. However, for the enhanced performance of the 3.5L V6, premium gas with a minimum octane rating of 91 was recommended.

Fourth Generation (2007-2013) – Performance Tweaks

While the 3.5L V6 continued into the fourth generation, the manual suggested regular gas with an octane rating of at least 87 for all engines, including the high-performance V6. Premium gas did not yield any additional power gains and was not deemed necessary.

Fifth Generation (2013-2018) – Styling Changes, Same Fuel Recommendation

Despite the visual changes in the fifth-generation Altima, the fuel recommendations remained consistent. Regular gas with an octane rating of at least 87 was advised for all engines.

Sixth Generation (2019-2022+) – Turbocharged 2.0L Engine

The introduction of the 2.0L turbocharged engine in the sixth generation brought flexibility in fuel choices. Regular gas with at least 87 octane provided 236 HP and 267 lb-ft. Opting for premium fuel with at least 93 octane unlocked the full potential, delivering 248 HP and 273 lb-ft. The owner’s manual underlines the necessity of at least 93 octane for maximum power but acknowledges that it’s not easily found.

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