At how many miles should I change the spark plugs in a g25 2011
Hello,
That's a great question about a common maintenance item. For a 2011 Infiniti G25, the manufacturer's recommended interval for changing the spark plugs is 105,000 miles or 84 months (7 years), whichever comes first.
This is a much longer interval than what was common on older vehicles because the Infiniti G25's engine uses long-life iridium-tipped spark plugs. These are designed to last for an extended period without significant wear.
Here are a few additional things to keep in mind:
- Check the Owner's Manual:** Always double-check your vehicle's owner's manual. It is the definitive source for your specific vehicle's maintenance schedule and will confirm the exact mileage and time interval.
- Driving Conditions:** The 105,000-mile interval is for "normal" driving. If the car has been driven under "severe" conditions (e.g., frequent short trips, driving in extremely hot or dusty climates, or towing), you might consider changing them sooner.
- Symptoms of Worn Plugs:** Even if you haven't reached the mileage interval, it's a good idea to consider replacing the spark plugs if you notice symptoms of a problem, such as:
- Rough idling or a rough-running engine.
- Engine misfires or hesitation.
- Decreased fuel economy.
- A sluggish feeling during acceleration.
Since the G25's engine is a V6, it will have six spark plugs that should all be replaced at the same time.
