See also:

Octane rating tips
Using unleaded gasoline with an octane rating lower than recommended can cause persistent, heavy “spark knock”. (Spark knock is a metallic rapping noise.) If severe, this can lead to engin ...

QR25DE engine
1. Engine oil filler cap 2. Brake fluid reservoir 3. Air cleaner 4. Engine coolant reservoir 5. Window washer fluid reservoir 6. Drive belt location 7. Engine oil dipstick 8. Radiator ...

Going & Stopping
Base Altimas have a 2.5-liter four-cylinder engine that makes 175 horsepower (170 hp in states that have adopted California's emissions rules). A 270-hp, 3.5-liter V-6 is optional. A six-speed man ...