Among all aftermarket products, STP filters offer a great deal of quality at a very reasonable price. However, I’ll let you be the judge of the filters. In this STP oil filter review, I have only included some facts to help you decide.
Without any argument, OEM parts are a better option but they cost a lot. Also, it is tough to find the right model at any given time.
5 Best STP Oil Filter Review
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Are STP oil filters good?
STP oil filter has a spin-on canister. It has innovative technology to prevent the contaminants from making their way inside the engine. This small yet crucial part removes tiny particles of metal and other debris from your vehicle’s motor oil. And so this tiny tool keeps the oil clean to work optimally as a coolant and lubricant while the car is running. The best part is this quality oil filter is not pricey.
The Ultimate STP Oil Filter Review
Are you wondering which one to choose for the clean oil circulation inside the engine? Check out the reviews of my recommended models to suit your demands.
1. STP Oil Filter Extended Life S4967XL – Overall best one with great efficiency
Coming from Chinese manufacturers, the S4967XL will surely impress you. It has the high-standard and innovative technology to prevent the contaminants from making their way inside the engine and thus protect the engine against damage.
With the blend of synthetic and cellulose, the media captures around 97 to 98 percent of 20 to 25 micron-sized metal particles, carbon, and dirt of the oil before it passes through the engine.
The surface area is around 100.7 square inches, which is bigger than the other models mentioned below. However, I recommend using this filter for synthetic oil to enhance the longevity of the filter.
The components are quite sturdier than other high-end models. The end caps and center parts are made with metal. The case is corrosion resistant and has a non-slip grip texture for easy installation and removal.
Its anti-drain back valve is made with silicone that can withstand wear and tear or temperature as high as 400°F and as low as -40°F.
It has more multifaceted differences than other options. There are five inlet holes at the end cap. However, I wished for wire backed media in this price range.
Overall, when I changed the filter after ten thousand miles, I did not encounter that much degradation of the structure. This model stays in good shape for a long time if you take care of it properly.
- Great efficiency
- Big surface area
- Good spin-on canister filter style
- Stays in shape after ten thousand miles
- The silicone valve prevents oil from leaking
- Not wire backed media
2. STP Oil Filter S4967 – Affordable option that goes up to five thousand miles
For the best value for your money, the S4967 is an ideal pick. Its low price tag and good filtration efficiency make it a favorite among car owners.
If we talk about outer appearance, it has got a shiny blue casing. Inside it, things look as neat and efficient as the American engineering behind it. This 0.43 Ibs filter is smaller than our top pick as It has an 81.6 square inches surface area.
The spacing between the cellulose filter is also great. However, the anti-drain back valve is made with rubber, which does not have as much endurance as the silicon one. That is a compromise for the price.
In this price range, you are getting metal end caps and center tubes, which are worth-mentioning. But you cannot keep this model more than five thousand miles.
The packaging is good, and so you will not see any dents or cracks in them while taking it out of the box. The filter thread size is crucial for your vehicle, and it has a ¾” – 16 Thd. On the whole, if you keep in mind the caveats, it will properly serve you for three months.
- Good efficiency
- Good for conventional oil
- Metal end caps and center tubes are sturdy
- The old gasket gets stuck sometimes.
3. STP S8873 Oil Filter – Budget-friendly option for your car
Again, if you are looking for a reliable option for your car, take the S8873. At such a cheap price tag, you are getting good filtration and engine protection. The eight inlet holes keep a good flow of oil.
Again, while draining the oil, the anti-drain back valve retains some lubricant to avoid a dry start. However, it would be best if the valve were made with silicone.
Like other stp oil filters I have mentioned, it has a safety feature called the bypass. When your filter gets clogged up or the oil flow gets reduced, the bypass opens up and lets the oil pass and feed into the motor.
The media does a good job for filtration, but it does not have a wire backing for stability. However, at this price point, you are getting metal end caps and center tubes.
As the oil filters are vehicle-specific, you need to check whether this one fits in your car or the latter one, or the former one. This model weighs around 0.75 Ibs with a filter thread size is 13/16 x 16 UNS. Overall, the S8873 will serve you great for five thousand miles.
- Sturdy metal parts
- Comes with a bypass safety feature
- Works great for five thousand miles
- The valve is made of rubber
4. STP S-02805 Oil Filter – Another affordable option
Coming from the USA, this model is also a quite great quality item for providing a clean oil supply to the engine to keep it running. It has also got a steel coil spring to keep everything compressed. The model can trap 95% of 20 to 25-micron particles.
When you are placing the gasket, give a little dab of oil to come off easily later.
This one has a red outer case with an 81.6 square inches surface area. The helical seam design of the STP oil filter’s center tube gives better strength than the axial seam design. If you look at the center tube, it has got a good amount of holes for smooth oil flowing.
- Robust metal parts
- Serve you for three months
- The size may seem small compared to other brands
5. STP S6607 Oil Filter – Reasonable basic option for vehicles
Last but not least, we have got the S6607 model with a spin-on canister to provide protection up to 5000 miles. The filter features a cellulose media to trap around 95% dirt. The filter promotes easy start-up for the anti-drain back valve. I wish if it had a silicone valve.
This filter has an M20 x 1.5 thread size. This model is a great option for conventional oil. Overall, it works great like our other mentioned basic stp oil filters.
When you are replacing the filter, always check if you leave behind the old gasket. After placing the new one, you can encounter oil leaking as if the old one is left behind.
- Good spacing
- Great price tag
- It comes with around 95% efficiency
- Serves well for five thousand miles
- The rubber valve may get damaged earlier
What I Have Considered While Reviewing STP Oil Filters
You can face many hassles in purchasing the right stp filter as there are various options to choose from. Here are some key features that you need to take into consideration before making the final purchase.
Oil filter type
Generally, stp oil filters are cartridge type. The recent construction of cartridge oil filters comes with a spin-on to boost the filtering efficiency. The filter media here is made from synthetic materials.
With the capacity of oil filters, you can determine how better the mileage is. Remember, the filtration capacity is influenced by two elements: the media type and filter construction.
When an oil filter reaches its capacity, it leaves the unfiltered oil that goes into the engine through a dump valve.
Generally, the basic one from stp can go from three thousand miles to five thousand miles; the extended life one can go up to ten thousand miles, and the max life one can go up to fifteen thousand miles.
Within every oil filtration, there is a function that operates to filter out the oil. This function is called the media of oil filtering. It can be made of synthetic or cellulose, or in a sequence of these two. The synthetic one offers better capacity without damaging the oil flow. The cellulose one is cost-effective, but the quality is not satisfactory. However, it is better to choose the combined one.
The weight and housing configuration of a car dictate whether an oil filter can be mounted there. You have to make sure that a filter’s structure goes with your car’s function.
Every oil filter is different. Nonetheless, it should be compatible with your car that can be easily installed.
Why do I need to change the oil filter?
The oil filter lets unfiltered oil into the motor when it reaches its capacity. By changing it, you can ensure a clear flow of oil into the engine and enhance longevity.
How often should I replace my filter?
It is recommended to change the filter with every oil change. Again, if you see the engine light is on or there are noticeable leaks or overheating of the engine, you should replace the filter.
Why Your Car Needs an Oil Filter?
The right viscosity of oil makes it easy to flow through your car’s system. And the filter captures the dirt and impurities and cleans the oil. The faulty filter would affect the engine’s lifespan, possibly cutting it in half.
What is STP?
STP or Scientifically Treated Petroleum is an American brand of automotive aftermarket accessories. The brand is possessed by Energizer Holdings, which acquired STP in November 2018.
The oil filter may be a small tool, but you cannot ignore its importance for your engine’s performance. After going through the stp oil filter review, I am quite sure you are not going for the poor quality products anymore.
Always check the vehicle fitment before purchasing the product as oil filters are not universal. It is recommended to change your oil filter every three to six months.
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