STP Ultra 5 in 1 Review: Your One-Stop Solution

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Imagine this- it’s the end of quarantine! Finally, you’re out with your beloved car. Suddenly you realize it’s not functioning as smoothly as it used to before.

Well, a lot can cause this. So, naturally, this may scare you

That’s why you’ve probably come on the internet to seek answers. Well, if you are reading this stp ultra 5 in 1 review, I would say you came to the right place.  

stp ultra 5 in 1 review

Firstly, DON’T PANIC. Your car is absolutely fine. However, your engine needs a little bit of cleansing. By using this product, things would be much easier! And, hence, we’ve researched for around 4 weeks with this product. 

Yes! It is the one-stop solution for all your problems. So, without any further ado, let’s dive into the details-

You may also like: STP Synthetic Oil Review

STP Ultra 5-in-1 Review

STP Fuel System Cleaner and Stabilizer

STP Ultra 5-in-1 Fuel System Cleaner and Stabilizer

Product Specifications:

  • Item Dimensions: 8.58 x 2.6 x 2.52 inches
  • Weight: 1.35 pounds
  • Brand: STP
  • Style: Fuel Stabilizer
  • Model Number: ‎18315

Starting off, STP ultra focuses on fuel cleaning and stabilizing. This technology has been engineered to enhance engine performance. But how does it do that, exactly?

Well, stp ultra 5 in 1 has some cleaning and lubricant agents inside of it. Here, the cleaning agents help to clean the deposits of ethanol. And, the lubricant agents end up reducing friction. 

Besides, we all know that majority of the gasoline we use has ethanol in it. And ethanol is very susceptible to chemical reactions. It reacts with the air in the combustion chamber and separates into water. Also, it comes with component chemicals that can create gum. 

Here, the gum will then end up clogging the engine. And, the stray moisture creates buildup and corrosion. That isn’t a pleasant thing for your engine, is it?      

But, here’s where the magic happens! The cleaning agents of the product help to keep the fuel system clean by preventing further gum formation. 

And, the best part is that it’ll even destroy the existing buildup of gum. Honestly, I have already given the scientific explanation behind the fuel cleaner. It’s on the stp ultra 5 in 1 fuel system cleaner review, so I won’t get into the nitty-gritty in this one.

But stp ultra 5 in 1 is not only a fuel system cleaner. It is also a fuel system stabilizer. After going through the chemical reactions stp ultra 5 in 1 engine treatment review, I know about this statement clearly. 

In the end, we could crown this product as an absolute package. Because it does pack a punch when it comes to the overall maintenance of the engine. 

You see, for your better understanding, I have separated the pros and cons of stp ultra 5 in 1. Now let’s check them out-

The Pros:

  • Creates a chemical bond with gasoline. So, the gas is saved as it won’t evaporate 
  • The cleaning agents deep clean the whole engine system. Hence, your engine will run smoother and better. 
  • The lubricating agents reduce friction between the engine parts. As a result, no extra heat will be generated 
  • Prevents ethanol deposits. So, no corrosion will happen and no new buildup will be created. 
  • Compatible with any modern gasoline engine as well as a cap-less gas system. So, it can be said that the compatibility rating is high.

The Cons:

  • Not compatible with petroleum engines or ethanol-free gasoline. So, if your engine is petroleum-based, it may not be the right product for you.

Buying Guide for STP Ultra 5-in-1

stp ultra 5 in 1 fuel system cleaner review

Now that you have read all the pros and cons of using stp ultra 5 in 1, I would like to share some key features of the product with you. So that, before buying the product, you are able to compare it yourself.    

Strong Stability Game:

As the name suggests, a fuel stabilizer must have a strong stability game. Stability is one of the primary reasons to use such a product.

Now, what does a strong stability game mean you ask? It means the product must offer a strong protective layer for the fuel that’s sitting in your tank. . And by doing so, it prevents gasoline evaporation.  

Moreover, a fuel stabilizer needs to bond with gasoline to prevent it from forming sticky resin-like substances. Otherwise, this is also known as ‘gum’.  

Now, after going through the stp ultra 5 in1 fuel cleaner work review, I learned about the cleaning works of this product. Plus, it even explained in detail how the product keeps the fuel system clean. It does all of this by maintaining the stability of gasoline. 

After testing and reviewing more than twenty fuel cleaners and stabilizers, I can say without a doubt that no other product has a stronger stability game than stp ultra 5 in 1. Honestly, this is quite amazing! 

PEA and PIBA: The Key Ingredients   

The next thing you need to look out for is the key ingredients in the product. Here, the two key ingredients in stp ultra 5 in 1 are PEA and PIBA. Now, let’s see why should you take them under consideration-   

The first cleaning agent that stp ultra 5 in 1 contains PIBA. Although most fuel cleaners use PIB as one of their key ingredients, I believe PIBA is a better choice. 

Because, unlike PIB, PIBA has the ability to remove existing deposits. However, it does not have the durability to survive in the combustion chamber. No worries cause that’s where PEA comes into action.  

Now, PEA is a very common ingredient that many products contain. It is basically a fuel system cleaner. And, it’ll clean the carbon from various engine parts, such as pistons, valves, fuel lines, etc. 

Another amazing thing that PEA does is, inhibits corrosion caused by water and ethanol in the fuel system. 

Now, you may think, if the ingredients are so common why should you buy stp ultra 5 in 1? The reason is quantity. The stp ultra 5 in 1 contains 3X the amount of cleaning agents and that simply makes it a better option.


One of the unique features of stp ultra 5 in 1 is its versatility. It can work in any modern gasoline engine such as turbo, direct-inject, hybrid vehicles, etc. Yes! If you want to improve the performance of your car or even your lawnmower, this one product is all you need.   

Apart from your usual gas system, this product is also compatible with a cap-less gas system. 

However, if your fuel system is diesel-based, I would suggest you rather use a diesel system cleaner. Because in the stp ultra 5 in 1 diesel review, I have noticed some additional benefits that stp ultra 5 in 1 doesn’t offer. Such as cetane improvers and stp wear guard. 

Usage Frequency: 

Stp ultra 5 in 1 Fuel System Cleaner and Fuel Stabilizer is 20 fl oz which is 591 ml. Now, this amount is more than what you usually get. 

The other similar products in the market generally need a refill after every 3,000 miles. However, the usage frequency for stp ultra 5 in 1 is 4,000 miles. 

So, it means you can use it for a longer period of time. And that is undoubtedly good news for your wallet.

Got Some Questions?

How to use stp ultra 5 in 1?

To use stp ultra 5 in 1 all you have to do is pour the bottle when your tank is half full. And then, you need to refill it after every 4000 miles.

Can I use stp ultra 5 in 1 in my Ford Escape?

Yes you can use it in your Ford Escape because stp ultra 5 in 1 is compatible with the capless gas system of Ford Escape.

Will stp ultra 5 in 1 work in a boat?

It depends. If your boat has a modern gasoline engine and the gasoline used in it has ethanol then stp ultra 5 in 1 will definitely work in your boat.

Is this product okay to use in a hybrid system?

Yes. Stp ultra 5 in 1 works in any modern gasoline system including the hybrid system.

Final Verdict 

Finally, we have come to an end. Even though I have tried to present every piece of information in an organized way in this stp ultra 5 in 1 review, you could get confused easily. Don’t worry, we’re humans! It’s okay to get into a tangle. However, read out the sections again for better understanding.  

Hopefully, you have gotten all the answers you were looking for. If not, comment below and let us know about your queries.

STP Fuel System Cleaner and Stabilizer

STP Ultra 5-in-1 Fuel System Cleaner and Stabilizer, Advanced Synthetic Technology

Robert Lozano

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