Autolite vs NGK Spark Plugs

Autolite vs NGK Spark Plugs
Autolite vs NGK Spark Plugs

It is considered that the NGK spark plug is relatively better than the Autolite. However, some cars are an exception to that fact and cope well with Autolite plugs. Autolite is one of the best selling spark plugs in America; the NGK plugs are better positioned regarding their quality.

Autolite is ideal for small engines and is known for its “easy start”, and cars are supposed to run better with Autolite. At the same time, NGK will load up and pays off in the long run.

Autolite vs NGK Table

There has been rather mixed feedback when it comes to reviewing both these spark plug. NGK spark plugs are acknowledged for their impressive gas mileage and enhanced performance, where any discussion of spark plug rarely goes without mentioning Autolite. Autolite spark plugs are known and used all over the globe for their affordable price point and durability.

Model: Autolite APP5325-4PK

Model: NGK (7090-4PK)

Spark Plugs Type: Single Platinum

Spark Plugs Type: Single Platinum

Gap Size: 0.044 in

Gap Size: 0.040 inch

Core Material Copper

Core Material Platinum

Thread Diameter: 14 mm

G-Power Platinum Alloy Spark Plugs

With Less Voltage Easier to Starts and Quicker Acceleration

Reduces Ignition System Voltage Requirements

Double Platinum Spark Plugs Virtually Eliminate Gap Erosion, Reduce Misfires

Give Protection Against Anti Seizing

Improve the Engine Performance for a Longer Life & Fuel Economy

Increases Fuel Economy & Lowers Emission

Lifespan 60,000 Miles Service Life

Lifespan 30,000 to 50,000 Miles

Fit type: Vehicle Specific (Check the manual)

Fit type: Vehicle Specific (Check the manual)

Main Features

With a vast range of options, both Autolite and NGK provide you with various spar plug to choose from. Let’s skim through some of their flexes:

Assures no Gap Erosion

First things first. Spark plugs are supposed to create the spark that will create a mild explosion and communicate through a subtle jump of current. It works as a bridge, and with Autolite, you surely don’t have to worry about miscommunication as it leaves no gap behind. The full platinum focused tip ensures a complete bridge.

With more than 1,000 options NGK doesn’t disappoint anyone. Moreover, NGK is made with “Trivalent Metal Plating”, which proudly owns the credit for superior anti-corrosion function. These spark plugs are made out of authentic material which doesn’t allow them to wear off easily. The exterior doesn’t let dirt get clung to the surface. As a result, NGK tends to last long.

Optimize Engine Performance

Spark plugs are very much among the parts that join the system and keep the engine in working mode. However, they can provide an effortless ride via a proper electrode bridge and spare you a decent sum and a good quantity of fuel. Thus, resulting in an optimized engine that is prone to last long.

Nevertheless, NGK spark plugs are known for their low combustion quality, one of their biggest flex. They use very little fuel for emission; thus, it doesn’t consume much fuel and strive off the engine and saves you a decent amount of money. Thus, providing you excellent mileage.

High Tech Nickel Side

Autolite is engineered with precision to sustain the gap through a modified nickel side. Not with one sort of material but with a combination of two or more to maintain that particular distance.

No doubt, the hot-spot of a spark plug is their ‘tip’. It is the very edge that communicates and ignites the spark that jumps to the other. Keeping these facts in consideration, the NGK company builds their spark plugs with extra focus on the tips. Both the pole is made with laser welded Platinum centre electrode tip for the better arc.

Hard Copper Core

Without any exception, Autolite can be trusted to provide better performance in all sort of situation. They are well known for their solid copper core that maintains a continuous flow of electrode from one tip to another.


With all the eye-catching pros NGK spark plugs have been reported for their infamous quality of often misfiring. The plugs should have a gap of +/-0.008″ as mentioned by the manufacturing company. Nevertheless, there have been cases where NGK had failed to play its role even after conducting subtle in the gap.

Platinum is one of the rarest and strongest metal can cost you a big sum of money. On the other hand, the iridium to are not much cheaper compared with the Autolite.

Which one is Better?

By a huge margin, Autolite has been crowned with the title of “America’s top-selling spark plug”. It provides flawless service not only in the cases of small engines but also in bigger sized ones. For easy start and effortless acceleration, Autolite is an ideal choice. Autolite runs far better in the long run when compared with the conventional copper ones.

However, if you are looking for durability and high power which stands out than usual, settle for an NGK spark plug without being sceptical.


As you might have already witnessed that both of these spark plugs are pretty much similar to each other. For both the plugs are worth a trial for choosing the ideal complement for your vehicle. With Autolite having a rating of 4.6 stars and NGK having 4.7 stars out of 5 there is no possibility for a strong regret of loss.

Autolite Spark Plug

NGK Spark Plug

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