The kind of gas the 2009 Nissan Maxima takes is 91 octane unleaded MINImum. Car parts will someday become ineffective at some point. The fuel filter needs to be replaced every 30,000 miles. If it doesn't, You will come across issues with the performance. Having the fuel burn optimally is crucial to maximizing Your miles per gallon. Your gas tank needs to be in the best of shape. You will come into problems at some point or another. The gas tank might become loose. A bad control valve may arise. There may be gas leaks, which need to be looked into pronto. The gas cap can become stuck and will be quite an ordeal to deal with.
Ty
May 23, 2021
The owners manual for a 2009 recommends 87
Peter M.
August 29, 2019
Nissan recommends using at least 91 octane unleaded gasoline in the 2009 Maxima for the best possible mileage results.
Jim
May 15, 2022
Ty, you’re clearly not looking at the right owners manual, it’s 91 for a 2009 Max.
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