How oil additives work to stop leaks

How oil additives work to stop leaks

Oil stop leaks are designed to stop and seal leaks brought on by normal engine wear and tear. The engine will deteriorate with time, requiring maintenance. The good news is that for certain problems, a high-quality oil stop leak is a reasonably simple remedy. Both leaks and their occurrence may be avoided thanks to it. It might be difficult to choose the best choice since there are so many accessible in shops and online. For a selection of some of the best choices presently on offer, see the list below.

A stop leak additive is what?

A non-solvent chemical compound called a stop leak additive contains a mixture of friction reducers and other refined petroleum components. Engine gaskets, O-rings, and other seals may shrink, stiffen, or dry out over time due to usage, heat, humidity, and pressure. As a result, it’s possible for cracks, holes, or other openings to form that might let oil spill. Oil bypassing worn seals will be reduced with the use of additives.

Eventually, the different seals, O-rings, and gaskets in an engine start to dry up and start to peel away from surfaces. A leak may form when this happens. These additives are designed to revive seals, restoring them to their normal size, shape, and flexibility to reduce or halt leaks.

Formulas for Particle-Clogging Oil Stop Leaks

At first, motor oil leak sealers were made to block the hole through which the oil was leaking. Each business did this in a unique manner; some of the oldest formulations employed pulverized peanut shells as a block in this regard. Lubricant supplier – Sinopec mentioned to save oil, the ground debris would flow to the leak and plug the region. The consequences of these particles over time on a motor are problematic, as are recipes that include sawdust, aluminum shavings, and other additives. They made engines wear out more quickly and finally caused more damage than benefit.

Formulas that Absorb

The finest engine oil stop leak additives are designed to dissolve into all of the engine’s seals. These formulae don’t have the same negative consequences since they don’t include engine blocking particles. The solvents enlarge and restore the gaskets and components to their normal size and flexibility, preventing any leaks brought on by gaps or worn-out seals. To do this, earlier recipes employed petroleum distillates. As the distillate might worsen engine damage, most recent stop leak oil treatments utilize alternative compounds.

Characteristics Plasticizers

A stop leak additive that revitalizes the seals is crucial since gaps between the different seals are the most frequent source of oil leaks. Cracked rubber components will often be restored to their previous sizes using a chemical procedure. The most efficient compounds for this purpose are referred to as plasticizers. Each firm will have a different strategy.

Distillates of Petroleum

Petroleum distillates are a typical chemical used to restore gaskets. The problem with this chemical is that it could harm your engine over the long haul. While attempting to repair some components of your fuel system, it may wear out others. This may cost more in the long run than the initial problem. You should stay away from petroleum distillates in a suitable stop leak additive.


Under $25: You should spend your money on the less expensive choices to see whether oil stop leak may repair your problem. You may get any of the top engine oil stop leak additives in modest amounts, such as 8 ounces and 24 ounces, for less than $25.

$25 and up: The majority of oil stop leak additives are offered in bulk amounts for ongoing protection. This may consist of bundles of gallon containers, packs of 32-ounce bottles, or even bundles of 32-ounce bottles. If you are certain that an additive will solve your problem, going in larger amounts is a smart idea.


  • If the issue isn’t resolved after you utilize an oil stop leak, speak with a professional. Your engine may suffer significant harm if it loses a lot of oil. It’s imperative that you identify the issue and address it as quickly as possible.
  • When mixing the oil stop leak with your oil, be sure to use the recommended dosage by reading the product description.
  • Before making a purchase, ascertain if your car utilizes synthetic or traditional oil. While many may be used with various oils, it’s crucial that the item is compatible with the oil you’re using.
  • Hazardous substances are included in certain oil additives. These additives have the potential to permanently harm the engine of your car. Avoid using any petroleum distillate-based oil stop leaks and be on the lookout for EPA-certified products.


How does oil leak stop fluid work?

Leak plugs for oil are simple to use. Just combine it with the regular oil you use in your automobile or truck. Make careful you accurately measure the required quantity. This information is printed on the stop leak fluid bottle.

Do oil stop leaks harm an engine?

Some traditional oil leak stops were bad for engines. Better formulations have been made possible by modern technology, thus the items of today need to function flawlessly. However, using the incorrect oil stop leak might harm your engine, so be careful to conduct your homework and choose the right additive.

What happens if the oil stop leak is ineffective?

Oil stop leaks are a fantastic repair, but they aren’t made to address every problem. Take your car to a professional so he can thoroughly analyze the issue if you utilize a product and don’t see an improvement.

Can oil stop leak be used as an alternative to seeing a mechanic?

Maybe. Depending on what is responsible for the oil spill. Gaskets and seals are revitalized by oil halt leaks, which are intended to reduce leak-causing gaps. An oil stop leak won’t help, however, if there is a significant hole or significant engine damage.

Final words

Now you know how oil additives can help you with stopping oil leaks. Make sure that you find the right additives and use, so that you can easily overcome confusion and receive best results.