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Originally Posted by my93Pathfinder
If you don't have one installed already, get a K&N air filter for it. It helps the fuel economy a little bit and gives you just a little bit (and I mean like only 3-5 max) more HP as well, but every little bit counts!
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You are stepping over a dollar to save a dime. Best way to save gas:
1) Check tire Pressure.
2) Tune up engine if necessary.
- Spark plugs, wires, 02 Sensor etc.
- Replace fuel filter
3) Slow down!
Installing gimmicks won't help. K&N *might* improve HP by a small amount... but you are risking longer-term engine damage. More air = less filtering = more dirt/debris in the engine.