STP Oil Filter Vs AC Delco Oil Filter- What Can Filter More?
What is the difference between ACDelco and STP oil filters? One of their main differences is their price. The STP oil filter is expensive compared to the AC Delco oil filter. But this is not the end. There’s more to explore.
When you are looking for the best oil filter out there in the market, you will find out these two brands’ oil filters. You need to know them well otherwise you can’t choose one between them. That is where we come in. We will help you to know that by showcasing the comparison on stp oil filter vs ac delco oil filter. Check the below guide to know more.
STP Oil Filter Vs AC Delco
| Key Points | STP oil filter | AC Delco oil filter |
| Build design | Made with improved cellulose media | Designed with thermoplastic end discs that are built of 100 percent recycled material |
| Filtration media | A special type of paper filter element is used | A big pleated paper filter element |
| Efficiency | 90%-99% efficiency | 98% efficiency |
| Mechanism | It uses the clicker style bypass valve | It uses a traditional type of bypass valve |
| Performance & longevity | Last in the range of 5,000 to 15,000 miles | Last in the range of 3,000 to 7,500 miles |
Let’s check all the above-mentioned differences between the stp vs ac delco oil filter below.
Build Design
We found that the STP oil filters have improved cellulose media that delivers the best engine safety and longer life. In addition, the STP Extended Life oil filters contain a synthetic fiber blend media that provides optimal safety for your car’s engine.On the other hand, the AC Delco oil filter comes with thermoplastic end discs that are built of 100 percent recycled material. The AC Delco Gold (Specialty) Ultraguard oil filter is made to endure 5 times bigger force than the maximum engine operating pressures after the oil gets to functioning temperatures for longer life.
Filtration Media
You will find a special type of paper filter element in the STP oil filters. This paper filter element holds all the dirt that can destroy your motor. It doesn’t matter in what country the paper filter element was built as the purpose of operation and design of the paper filter element are the same. According to the Grease 1218 study, STP oil filters have larger pore sizes, the same as the media inside of the SuperTech oil filters.
On the other hand, the AC Delco oil filters have much smaller pore sizes. The AC Delco oil filters use a big pleated paper filter element, which is a standard 20 micron and single pass. This paper filter element is firm and endures a lot of pressure with no distortion.
Efficiency
We have found that the STP oil filters generally have 90 percent efficiency for filtering the oil. They deliver the best filth trapping efficiency and filth carrying capacity.
Also, the STP Extended Life Oil Filters like the STP Oil Filter S11473XL come with 99 percent Multi-Pass efficiency, and the removal of particles are only 20 microns.
However, a user from Bob Is The Oil guy doubts that the metal on metal sealing may not be that efficient with STP compared to AC Delco.
In the case of the AC Delco oil filters, they have outstanding filtering abilities with 98 percent multi-pass filtering efficiency at just 25 to 30 microns.
So, the STP Extended Life oil filters are the winner in this category.
Mechanism
Maximum STP oil filters use the clicker style bypass, which does not seem like it could seal very well. They also use combo bypass. On the other hand, AC Delco oil filters use a traditional type of bypass with a rubber-sealed valve. They also use a separate dome bypass.
The STP Extended Life oil filters contain Silicone O-Rings that are not affected by harsh temperatures as low as -40° F and as high as 400° F. In addition, they meet or surpass OEM fit and quality necessities.
The AC Delco oil filters have a cellulose media that entangles particles 1/3 the breadth of human hair to ensure a pure flow of oil to all engine parts.
Also Read: AC Delco Vs Wagner Brake Pads- Find The Best One
Oh, the AC Delco Gold (Professional) oil filter has Synthetic end caps. And these are ultrasonically welded to aid in preventing media blocked by adhesives, which you may find in old-style oil filters.
Performance & Longevity
The STP oil filters come with the premium NBR gasket and anti-drain back valve for ensuring the best performance. They are built to deliver up to 5,000 miles of engine safety while used with synthetic oil. Besides, the STP Extended Life oil filters can deliver up to 10,000 miles of engine safety while used with synthetic oil.
As a result, we can say that it is one of the best oil filters for synthetic oil in the market. Also, the STP MaxLife oil filters are rated to last for 15,000 miles. The AC Delco oil filters have a thermosetting adhesive seal that holds the filtering media in its place for compatible, reliable filtration.
In addition, the AC Delco Gold (Professional) oil filter and the AC Delco Gold (Professional) E oil filter have a nylon core for high strength and excellent flow attributes. These oil filters last in the range of 3,000 to 7,000 miles, relying on what oil and oil additives you use. According to some people, they can last for 7500 miles as well.
Price Difference
When we compared the prices between these two leading engine oil filters, we found that the AC Delco oil filter is slightly pricey with some models compared to the STP oil filter. Besides, the general oil filters from both come at around the same price.
Frequently Asked Questions (FAQs)
Are STP oil filters any good?
The quality of construction of the STP oil filter is very good. They are of sturdy materials that effectively eliminate pollutants from motor oil. They do not have silicone anti-drain back valves. Still, this oil filter appears to be great and lets a correct fluid flow.
Are AC Delco oil filters made by FRAM?
Yes, AC Delco oil filters are made by FRAM, also known as Champ labs. FRAM is a First Brands Group company that makes oil filters for the engine and replacement cartridges.
How long do STP oil filters last?
Generally, the high-quality construction of the STP oil filters enables them to last for up to 5,000 miles. But there is a huge difference between XL and MaxLife models of the STP oil filters. The XL models like the STP Extended Life Oil Filter S10358XL are rated to last for 10,000 miles. On the other hand, the MaxLife models are rated to last for 15,000 miles.
Is STP owned by AutoZone?
No, STP is not owned by AutoZone. Basically, Armored AutoGroup owns STP, and Spectrum Brands own armored AutoGroup.The full form of STP is Scientifically Treated Petroleum.
Which Oil Filter WIns The Race?
At the end of these two popular Oil filter differences, we can say that both of them are good, and it was a close battle. Although they have many differences, their efficiency, performance & longevity, and price differences will decide the winner. While the AC Delco oil filters are cheaper, the STP oil filters last longer and are more efficient.
So, when differentiating between the stp oil filter vs ac delco oil filter, the AC Delco oil filter wins the race. However, the STP filter is also good if you are looking for a cheaper solution. Make sure that you choose the best one as your oil filter between these two according to your preferences.
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D Conroy
Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.
