5 Best Spark Plugs For Mustang v6 & Buyers Guide (2020)

5 Best Spark Plugs For Mustang v6 & Buyers Guide (2020)

by Β· Automotive Expert
Published
Updated

If the engine is the heart of the car, then spark plug is the heart of the engine. They are not only responsible to provide the right spark, but also acts as a heat exchanger: relieve extra heat from engine and hence play a vital role.

Well-chosen spark plug will increase engine performance, reduce gas consumption, avoid detonation in an internal combustion engine, and increase the service life of pistons.

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We recommended:

our pick

NGK Iridium IX

The best mix of the price and performance

NGK has been around for quite some time. You can do a ton of homework on their plugs. But on the flipside here, if you compare that to running down to your local dealer, we probably almost guarantee you that replacing your plugs there are going to run that much more

best value

Ford Motorcraft OEM

Original equipment by Ford

If you're running a bigger setup on your V6, then you might wanna look into a performance-savvy plug like NGK's V or G Power options.But obviously, if you have a stock motor, OEM plugs are always the best and most reliable way to go, so spending that money might be worth it. If you have a little bit more mods done, you can start looking into performance options

premium

Bosch Double Iridium

Pricey choice for the best quality on the market

So, for better performance and the spark plug that will last choose Bosch`s Double Iridium spark plugs.

budget

NGK V-Power

Great choice for a direct upgrade

If you looking for a direct upgrade to standard plugs or as original equipment, for the price and for what you get we would definitely recommend you the NGK V-Power spark plugs

Nowadays the market provides with various kinds of spark plugs in terms of materials they are made of, different heat ranges and some other features. So it’s not surprising that as soon as you start choosing, you may get lost at such rich assortment.

This article will give a brief outline of the most effective and affordable spark plugs that will do real good to your mustang v6 engine!

Table Of Best Spark Plugs For Mustang v6

NameOur ratingrequired year perioddurabilityheat rangegappriceShops
NGK Iridium IX
β˜…β˜…β˜…β˜…β˜…
98-04100k miles50.054$$
Ford Motorcraft OEM
β˜…β˜…β˜…β˜…β˜…
06-10;11-17100k miles10.50$
Bosch Double Iridium
β˜…β˜…β˜…β˜…β˜…
98-04100k miles9preset$$$
NGK V-Power
β˜…β˜…β˜…β˜…β˜…
98-04,08-1080k miles50.44$
NGK G-Power
β˜…β˜…β˜…β˜…β˜…
98-04,08-1080-100k miles50.054$

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How we decided

box-icon
34
models considered
clock-icon
53
hours spend
interview-icon
31
experts interviewed

Best Spark Plugs For Mustang v6

Our rating:
β˜…β˜…β˜…β˜…β˜…5.0
User rating:
0.0(0 review)
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NGK's Laser Iridium plugs are going to be a great option for any of V6 owners out there, that are looking to replace their factory plugs or get into a set of upgraded plugs, that will help with throttle response and fuel consumption.

NGK's Iridium plugs should also appeal to the owner, that might be in the process or has already started to do some expansion emission parts.That could be anything from plug wires to coil packs, as everything is going to work hand in hand together.

You'll see much more improved throttle response and even, in some instances, smoothing out rough idles.

If you're not too familiar with the makeup of a spark plug itself, these spark plugs has feature a copper core electrode, and the tip made by iridium. Additionally, this item is going to feature some trivalent metal plating to ensure that this won`t corrode and it's going to give you a long-lasting life.

At the end of the day, what this all translates to - definitely a much happier and healthier V6, one that's going to heat up faster, you might see some rough idle issues go away, and again these ones are factory upgrade.

Key features:

  • improves fuel economy
  • iridium Tip for a Constant Stable Spark
  • pack of 6

Product score:

  • performance(9/10)
  • quality (9/10)
  • price (8/10)

TOTAL SCORE: 8.7

Pros
  • pre-gapped
  • price/quality
  • high performance
Cons
  • gap on some plugs is way off

Our rating:
β˜…β˜…β˜…β˜…β˜…5.0

The Ford Motorcraft OEM spark plugs are your choice if you own 06 to 10 or 11 to 17 Mustang and looking to do some very routine maintenance on their V6 motor that's either completely stock or very-very slightly modified.

Obviously, if you're running a more intricate setup, you wanna check out some of the more performance-based spark plugs, like the ones above-mentioned from NGK, since spark plugs from Motorcraft are very simply the ones that came directly on the car from the factory from Ford. If you experiencing some bad symptoms with your current spark plugs, it might be time to swap out those bad boys and do some routine maintenance.

If you have some of those symptoms, it may include, misfire, rough start up, rough idle, plugs knocking since they're mostly a two-piece, in addition to that, you might experience bad fuel economy, a decrease in throttle response and the list can go on and on. If that sounds like you, it might be time to swap them out and an OEM plug is definitely a great place to look.

If you were to put these on one of those bigger setups, like forced induction, you'd experience way worse symptoms than the ones we just mentioned.

Here is a link to The Ford Motorcraft OEM spark plugs if you own 06 to 10 Mustang V6

Key features:

  • copper core with platinum tip
  • direct OEM Replacement
  • increases engine life

Product score:

  • performance(7/10)
  • quality (6/10)
  • price (8/10)

TOTAL SCORE: 7

Pros
  • spark plugs from Ford
  • peak performance
  • resists corrosion and abrasion
Cons
  • compatibility is kind a problematic

Our rating:
β˜…β˜…β˜…β˜…β˜…5.0

Bosch's Double Iridium spark plugs deliver a longer, more high-powered spark for greater fuel efficiency, smooth acceleration and long-lasting engine performance.

It's engineered with an iridium center electrode tip, one nickel-yttrium enhanced electrode and advanced surface air gap technologies.

That Double Iridium delivers a four-year satisfaction guarantee from a renowned manufacturer.

Bosch Platinum assures drivers of consistent driving performance for a long time to come because their tips are built to last almost four times longer than standard copper style.

Also, these are completely laser welded. Bosch Iridium spark plugs utilize laser welding on the ground electrode, as well as 360-degree continuous laser welding on the center electrode. Therefore, this increases the durability of the plug.

Key features:

  • double iridium
  • increase durability
  • 4 year performance

Product score:

  • performance(9/10)
  • quality (9/10)
  • price (6/10)

TOTAL SCORE: 8

Pros
  • customized compatibility
  • price/quality
  • guaranteed performance
Cons
  • none

Our rating:
β˜…β˜…β˜…β˜…β˜…4.0

The NGK V-power performance spark plugs are for those who own a 98 to 04 and 08 to 10 Mustang V6 and looking for a replacement for old or worn-out spark plugs, but wanna upgrade to a high-performance option that will provide quicker starts, offer improved fuel efficiency, and lower emissions with a nickel alloy tip.

This will be for an all-stock or slightly modified engine.These spark plugs from NGK are a high-performance stock replacement option, built to handle the lightly modified pushrod or mod motor.

Replacing your spark plugs every few thousand miles is determinant of keeping your engine running gently and sustainably. Now that's why we think these V-power plugs from NGK, a company that's been making plugs for Mustangs for years, are super affordable and super reliable. They're definitely an upgrade over the factory option.

They'll help you get rid of rough idling, misfires, trouble starting, and the bad fuel economy, and the lack of throttle response, you might be dealing with as a result of old or worn-out plugs.

As far as materials and construction kind of goes for each plug individually, they were manufactured to feature a copper core for superior conductivity with a nickel alloy tip which helps to diminish corrosion.

Key features:

  • copper
  • V-Groove Technology
  • improves Fuel Economy and Lower Emissions

Product score:

  • performance(8/10)
  • quality (8/10)
  • price (8/10)

TOTAL SCORE: 8

Pros
  • price/quality
  • guaranteed performance
  • good longevity
Cons
  • none

Our rating:
β˜…β˜…β˜…β˜…β˜…4.0

The NGK G-Power Platinum Performance Spark Plugs will be for any 98 to 04 and 08 to 10 Mustang V6 owner who might be looking to swap out their factory plugs that may be old, worn out, and misfiring for a set of upgraded performance options from NGK.

This will give you an overall quicker start, lower emissions, improved fuel economy, and also reduces the required voltage. This is gonna be for the guys with stock or mildly modified Mustangs, of course, since it does have a heat range of a normal five.

Obviously, spark plugs are crucial in keeping your lightly modified or stock push router mod motor running smoothly and efficiently.

NGK has been making spark plugs for years and these are gonna be a performance upgrade with better material.

If you're looking at a bad set of spark plugs in your motor, you could experience a number of symptoms, such as a rough idle, a rough start, bad fuel mileage and on and on. This is definitely a good upgrade to improve those things, giving you better fuel efficiency, better throttle response with a smoother and quicker start.

As far as materials and construction goes, this item was manufactured from NGK with a copper core to give its superior conductivity and a platinum tip for a clean burn, which also reduces the amount of voltage required to make the engine run at full power. The G-Power options were also manufactured with a trivalent metal plating to make sure. that it also has anti-seizing capabilities as well as anti-corrosion.

Key features:

  • platinum
  • improves fuel economy and lower emissions
  • pack of 4

Product score:

  • performance(7/10)
  • quality (6/10)
  • price (8/10)

TOTAL SCORE: 7

Pros
  • smooth and efficient engine
  • price/quality
  • guaranteed performance
Cons
  • cheap construction

Best Spark Plugs For Mustang v6 Buying Guide

What about the heat range?

This is a quantity that shows the time when the spark plugs reaches a state of glowed ignition. The bigger it is - the less spark plugs are heated. Therefore, with a small heat number there will be a Hot spark, but with a big one - Cold.

Unfortunately, the scale of the heat range is not standardized and each manufacturer uses its own scale, so you'll want to look that up when it comes to each of them. For example, the NGK (the ones that we mentioned in our top list) typically does things backwards a little bit, so you'll be going from 2 to 11 with the range, 11 being the coldest, 2 being the hottest. So keep that in mind when you're going forward.

It's important to get the heat range correct. If the heat range is too cold, then you'll get carbon fouling on the plug and poor running. If the plug is too hot, you'll encounter detonation and pre-ignition, which can damage an engine.

Hot spark plugs will work excellent with the small loads, like cars in driving school or buses , but with long,intensive and higher gears,the temperature in the engine rises, this can lead to β€œglow” ignition. Result - engine power loss. The spark plug should be replaced by a refinement of the thermal characteristics and the elimination of all defects.

Conclusion

The resource of the spark plugs depends not only on the price of the product itself. This is the case when the actual result depends on the actions of the driver. Efficiency on fuel quality, the level of caring on your own engine directly affect the possible mileage.

Timely replacement is necessary to everyone sooner or later, but how early it will come is up to you.

Resources:

  1. Double Iridium Spark Plugs - boschautoparts
  2. How often should i replace my spark plugs - ngksparkplugs