How long do spark plugs last in a Subaru?
Typically, Subaru spark plugs are first replaced around 60,000 miles and again every 30,000 miles after that.
How do I know if my spark plugs are rich or lean?
Good running conditions: If everything is good, the spark plug should have a tan/light brown color. Rich running conditions: If your engine is running too rich, the spark plug will be black and sooty. Lean running conditions: If your engine is running too lean, the spark plug will be white.
Does Iridium spark plugs increase performance?
It has a high melting point, which also means that it can produce great electrodes while retaining its fine characteristics, Iridium spark plugs gives you better performance, complete combustion and excellent longevity which makes you free from change your spark plugs frequently.
What happens if you wait too long to change spark plugs?
Spark plugs will depreciate over time, so various engine issues will arise if they are not replaced. When the spark plugs do not generate the adequate spark, the combustion of the air/fuel mixture becomes incomplete, leading to loss of engine power, and in the worst-case scenario, the engine will not run.
When to replace spark plugs on outback 2.5?
The service manual of my 2016 Outback 2.5 recommends to replace the spark plugs at 60k miles. What is the consensus here on doing this? I am at 63k miles right now, so it’s about time.
Why is my Outback Limited 2.5i not idling?
I noticed my 2016 Outback limited 2.5i was not idling as smooth as it could at 61,311. I also noticed hard acceleration performance might indicate a spark plugs issues. When I pulled the plugs today at the above mileage, the gap was off significantly due to the wear of the plugs and the electrode was pretty warn.
What’s the life of a Subaru spark plug?
These factory spark plugs are half iridium, the ground electrode is still a platinum tip. There is a blurb from Ngk where they state that 80-100k is their expected lifetime for the platinum/iridium hybrid plug. Subaru rated these a little more conservatively at 60k miles.
Are there spark plugs on a 2015 Legacy 2.5?
I did on our 2015 2.5 at 60k a few weeks ago. Running just fine at 70K+ on our 3.6 Legacy but most of that was blasting down the Interstate. These factory spark plugs are half iridium, the ground electrode is still a platinum tip.