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The 2014 Nissan Frontier comes with a choice of two engines: a 2.5 L 4-cylinder or a 4.0 L V6, both of which require 5W-30 Synthetic Motor Oil. The 2.5 L engine needs 4.9 quarts with a filter, while the 4.0 L engine requires 5.4 quarts with a filter. The 5W-30 designation indicates the oil's viscosity, with 5 representing startup viscosity, W indicating winter-classification, and 30 representing viscosity at operating speeds. Using the correct oil is crucial for maintaining engine cleanliness and extending the vehicle's lifespan. The price per quart ranges from $8 to $13, and it is recommended to change the oil and filter every 7,500 to 10,000 miles due to the synthetic nature of the oil.
Nissan suggests using SAE 5W-30 Genuine NISSAN motor oil or a similar engine oil with an API Certification Mark for the 2014 Frontier with the 2.5L or 4.0L engine. If you can't find 5W-30, SAE 10W-30 is acceptable to use instead.