Are you looking for the best spark plugs for your Subaru Legacy? Still, thinking of high-quality performance spark plugs at reasonable prices?
If the answer is yes, then the good thing is that you’re just on the right page. Don’t have much time to scan this review? Go directly to Bosch Double Iridium Spark Plug. It is the top-rated best spark plug for your Subaru legacy.
Every automotive engine needs to spark plugs. May it be for a small or a large vehicle; or light to heavy equipment, spark plugs keep them functional.
The size of your spark plugs is tripled as to the extent of its significance to your vehicles. Your car is useless without these.
Why? It’s the soul of it. Your car won’t start nor bring you anywhere else unless you have this small, mighty thing.
That is why it’s undeniably essential, therefore who else would want to avail a cheap one? You know that your spark plugs are connected to your engine performance.
Weak or bad spark plugs will only cause you problems in the long run. You won’t enjoy having maximum sustainable power from your vehicle. Nobody wants to have these kinds.
Nowadays, many spark plugs in the market offer good quality at a more reasonable price. But the question is, how can you guarantee that it’s worth the price?
To narrow down your options and provide you with the best, we have listed down top spark plugs that you could explore for your Subaru legacy.
Best 5 Spark Plugs Review
Here are the top 5 best spark plugs that you may opt to choose for your Subaru Legacy.
1. Bosch Double Iridium Spark Plug – Overall Best Choice
This is the top 1 of all the best choices that you can have. This Bosch Double Iridium Spark Plug is made to provide you with high-quality performance and longer service life. It’s the best from the advanced OE spark plug technology.
One of this product’s best features is its double Iridium firing pin and ground electrode inlay that can provide 4X more extended service life than standard copper plugs. It’s a 0.6mm fine wire firing pin which can provide superior ignitability and performance.
Also, it has a 360-degree continuous laser weld that fuses a corrosion-resistant iridium firing pin to the base for increased durability. It has a 7-year performance satisfaction.
- Extreme durability and longer life
- Exceptional ignitability and performance
- Very Expensive
- Not much improvement in performance
2. Bosch 6702 Platinum Spark Plug – Premium Pick
The next in line is the Bosch Automotive 6702 Platinum Spark Plug. It is a platinum firing pin and yttrium enhanced ground electrode. It can provide up to 2x longer service life compared to standard copper plugs.
Its refined wire design can provide better ignitability and performance. It has 360 degrees continuous laser welding to fuse the platinum firing pin for increased durability.
This spark plug has a 4-year performance satisfaction guarantee. It can also fit into a wide range of vehicles.
- Fuel efficiency
- Suits only for modern engines
- The gap is incorrectly set on some of the plugs.
3. Genuine Subaru 22401AA781 Spark Plug – Best Value
The third on the list is the Genuine Subaru 22401AA781 Spark Plug. If you’re looking for an affordable yet offers you still great experiences. Then this product might work for you.
It is manufactured from top quality components. It’s a price-friendly replacement option for your rebuild, repair, and maintenance needs.
If you’re looking for an authentic OEM part, you can trust this product’s high quality and effectiveness. It’s a bit difficult to choose the right parts for your car. So the better way is to stick with what you know and choose a genuine OEM part.
- Genuine OEM
- Universal Fit
- Each is sold separately (1per pack)
4. Autolite XP5683 4PK Iridium Spark Plug – First Budget Option
The fourth on the list is Autolite XP5683 4PK Iridium Spark Plug. It utilizes an iridium-enhanced 0.6 mm fine wire for improved ignitibility performance.
It has patented V-trimmed platinum side wire technology that resists wear. This has attached a motor seat gasket and terminal nut.
It uses proprietary platinum side wire for improved durability. This spark plug has more focused ignition for better overall ignitability providing optimum performance.
- Patented V-trimmed platinum side wire technology resists wear.
- Price friendly
- Vehicle specific
- It is not pre-gapped plugs.
5. Autolite XP3923 4PK Iridium Spark Plug – Second Budget Option
The last but not the least is the Autolite XP3923 4PK Iridium Spark Plug. These sparks plugs are technologically advanced with an iridium-enhanced 0.6 mm fine wire design.
It utilizes proprietary platinum side wire technology working to provide better durability and a more focused ignition for better overall ignitability and optimum performance.
These premium spark plugs also have features of an iridium-enhanced centre electrode and nickel-plated shell. It is guaranteed for seven years.
- Long life span
- Great durability
- Less voltage needed
- Vehicle specific
- Expensive for its features
Your Guide And FAQ In Choosing The Best Spark Plug For Subaru Legacy
Since these spark plugs play a vital role in your vehicle, it is good to know the list of options that are of the best quality.
However, when buying, aside from considering the best type of spark plugs available in the market; you also have to consider which one is essential for your car.
The priority above all is the one who can suffice the need of your car.
The below can help you find answers to some of your queries. This can also help you look for spark plugs that will suit best for your Subaru Legacy.
Importance Of Choosing High-Quality Replacement Spark Plugs For Subaru Legacy
In choosing replacement spark plugs, the more expensive it is, the more it sounds to be a good buy.
However, for some, they would opt to buy cheaper ones because of the idea that they could replace it at any time.
But the thing is that which is wiser to do? Is it to buy cheaper ones yet of low quality? Or to purchase expensive ones but of high quality?
Don’t you know that low-quality replacement poses a short service life? This only means that you will be replacing it more often. Also, this goes to show that buying a low-quality product will only get you to more problems in the future.
Mind you that replacing spark plugs is an essential part of your scheduled maintenance for your car. Changing it does much more than extending the life of your vehicle.
That is the reason why you need to be careful in looking for replacement spark plugs. And always make sure to choose high-quality ones.
The Factors You Should Contemplate In Choosing The Best Spark Plugs
When buying, you don’t just get to choose which the best is. But you need to take note of the key features that each best spark plugs have.
Sometimes, there are spark plugs that will work best for certain types only while they do not suit others.
It is a must to consider the best spark plugs that will let you enjoy its optimal experience. There are different factors that you need to know about in choosing the best Spark Plugs for your Subaru Legacy.
1. Plug Type
One of the most important to consider when buying the best spark plugs for your car engine is the material of the electrode.
The common materials used are copper plugs, platinum plugs, and iridium plugs.
Copper plugs best works with higher compression. However, it has the shortest lifespan of about 20,000 miles.
Further, platinum plugs burn at a higher temperature. Their lifespan can reach 100,000 miles because it is harder than copper.
Then iridium plugs are more resilient than platinum. Its life span can reach up to 125,000 miles. It can provide outstanding acceleration and fuel efficiency.
You need to consider the fact that engines may come from different sizes or shapes. Sparks plugs come from varying sizes from 8mm up to 18mm.
So it’s a must to consider the ones with the perfect and right size that can match with your type of vehicle.
Aside from the size and shape, part to consider is the temperature.
Though the primary goal of spark plugs is to ignite the fuel, the temperature of the plug must at least meet the demands of the application. With this, you can achieve the best ignition.
In choosing the best spark plugs, you have to know not only its effectiveness. But you have to make sure of its ability to accomplish its purposes.
Will it be time and cost-efficient? How was your vehicle’s performance after purchasing that type of spark plug?
Always know that your spark plugs’ efficiency is at stake because of the following:
- if your car stops from starting
- your vehicle cannot sustain maximum power
- your vehicle may see a drop in fuel economy
- your car still starts but is jerky at the beginning
- your car has a rattling or knocking sound.
How Often Do You Replace Your Spark Plugs and How Will You Know That You Need To?
Just like any parts of the engine, the performance of your spark plugs wears off as time goes by. Spark plugs are recommended to be replaced roughly every 30,000 miles.
However, there are factors that you need to consider when to replace your spark plugs.
- High Performance – there’s a greater chance of replacing your spark plugs more often if it’s high performing because the electrode can wear down faster.
- Oil Leaks – after pulling spark plugs out of the engine and finding a presence of oil this only means that there’s a leak already. The more frequent it should have been replaced because it has been contaminated already.
- High Revs – you’ll need to replace spark plugs more often if you regularly put your car through its paces.
Once your engine starts to be running rough, idling, or stalling, chances are you need to change your spark plugs already.
How Many Spark Plugs Do Your Subaru Legacy Have?
Most engines will require you 4, 6, or 8 spark plugs. Spark plugs are threaded into the engine’s cylinder head.
Most cars have one plug per cylinder. And a four-cylinder engine will have four plugs; a six-cylinder engine will have six plugs, and so forth.
What Will Happen If You Fail To Replace Spark Plugs
These spark plugs are vital to the life of your car. It deteriorates over time.
So if you keep on driving your car without changing its spark plugs, then it might cause you the trouble along the way.
Some of its issues include the following:
- A decrease in fuel economy
- Unresponsive acceleration
- Unstable idling or stalling
- Engine running less smoothly or not running at all.
If these spark plugs do not spark adequately, the combustion of air mixture will lead to loss of engine power. Worst, your engine will not run. It will also affect other engine parts that supply electricity, and there’s a significant risk of failure increase in some additional features.
Summary Of The Best Spark Plug For Subaru Legacy
In summary, out of all the reviews, the top 1 best spark plug is Bosch Double Iridium Spark Plug. It is remarkably assured that this product is the best among the rest.
Aside from it’s on the top, its high quality of performance and longer service life makes it the best. It’s been one of the best OE spark plug technologies.
All these best spark plug reviews offer different qualities that suit best on your car’s specific needs also. They all guarantee to provide you with the optimum level of experience from your car’s engine.