Skip to main content

Fuel treatments serve as specialized chemicals poured into your car’s tank to carry out a particular refinement function. This may include formulations from cleansers, lubricant and oil, to fuel performance enhancers.

One popular name that can actually be bought not just in auto shops, but also in supermarkets is STP Gas Treatment.

Benefits of Using STP Gas Treatment

With its stabilizing components, STP Gas Treatment enhances your car’s fuel condition by infusing potent cleaning solutions to prevent the formation of deposits such as varnishes, gum, and toxic carbons in your fuel system.

STP Gas Treatment also helps the oil inside the engine keep its natural state, while also avoiding clogging the delicate machine which could be a major contributor of unwanted damage.

Apart from improving your gas-cleaning performance, STP Gas Treatment is also said to enhance fuel quality and efficiency which could help you save money, as it knows how to maintain the fuel injectors and valves right.

How to Use STP Gas Treatment

The STP Gas Treatment is easy to find, and definitely easier to use.

In one usage, it is advisable to have the entire contents of the STP Gas Treatment poured into a tank that’s at least half full. This can actually treat up to 21 gallons of fuel. Another fact is that it can be mixed together with other STP Gas additives, and is considered safe by the manufacturer.

Other Valuable Insights

While STP products tend to prove its credibility, there are still some motorists who prefer to keep their tank rims closed for these fuel additives.

Although they are known to be “keep clean” products, petrol already contains all of the adequate ingredients that your vehicle requires.

For some instances, putting chemicals can also disrupt your gasoline’s chemical equilibrium that may result in damaging your car’s fuel injectors if used inappropriately.

Some drivers opt to put fuel treatments whenever they encounter fuel and engine-related issues, like misfires.

This isn’t a great start – as the first thing you should do is not to buy a fuel treatment, but to identify what causes misfiring. A certified mechanic can help, and he’ll be the one to determine if it’s a new fuel injector, spark plugs, vacuum hoses, or merely a fuel treatment that could fix the problem.

So, before getting the STP Gas Treatment, have your vehicle checked first to know if it really needs it. The product is pretty affordable, yet it could actually make, break, or actually do nothing with your vehicle.

More importantly, when having any chemical product, it is a must to read the label – as the smallest ingredients could possibly lead to the biggest damage that your car could ever have.

STP Gas Treatment Pros and Cons



  • Widely available in the market
  • Inexpensive
  • Cannot remove existing deposits
  • Easy to use
  • Can possibly have no effect at all
  • Can be added with other STP additives
  • Can even cause damage in some conditions


Frequently Asked Questions (FAQ)

When using STP gas treatment, it is important to follow the instructions on the packaging. Generally, it is recommended to use STP gas treatment every 3,000 miles or with every oil change. However, if your vehicle has higher performance needs or is used in extreme weather conditions, you may need to use STP gas treatment more often.
Yes, STP gas treatment can be beneficial in cleaning injectors. The product contains detergents that are designed to help dissolve and remove sludge, varnish and other deposits from fuel injectors, thereby helping them work more efficiently and reducing the possibility of clogs. However, it is important to note that STP gas treatments will not fix a severely damaged or clogged injector. In these cases, professional repair or replacement may be necessary. Additionally, it is recommended to use the product regularly for best results. Regular use helps maintain clean fuel injectors and prevents further buildup of deposits over time. Overall, STP gas treatment can help improve your vehicle’s performance by restoring the cleanliness of its fuel system components.
When using fuel treatment products, it is important to make sure that you add the product before filling up with gas. This will ensure that the fuel system has time to mix and disperse the additives evenly throughout the tank. Additionally, adding the treatment prior to refueling prevents potential flooding of the engine due to a large amount of added fluid in a short period of time. To use fuel treatment most effectively, add it into your vehicle’s tank when it is between one-quarter and one-half full. This will allow for an even mixture and maximum benefit from the treatment. If you are unsure about how or when to use fuel treatments, consult your vehicle’s owner manual or reach out to your local automotive service center for advice.
David Muench (Carnes Mechanical)

David Muench (Carnes Mechanical)

Hey, I’m David. I’ve worked in a cars store for 6 years. I write reviews and guides, helping people to choose the most suitable technicals and best product for them. I’m happy to finally share my knowledge of the industry here, on CarnesMechanical.

Leave a Reply