AC Delco PF63 vs. PF63e Oil Filter – Which one is better?

Engine corrosion and failure may result from contaminated oil. Therefore, finding an extremely robust oil filter is essential to avoid such issues.

Like every other oil filter, ACDelco oil filters such as AC Delco PF63E and AC Delco PF63 shield your engine from impurities. The filter’s design provides greater capacity, efficiency, and consistent performance.

However, some differences exist between both. While it can be confusing on the best oil filter to use in your vehicle, we have taken a critical look at both so you can make the best choice.

Read on to find out the differences between oil filters and the best oil filters for your vehicle.

AC Delco PF63 vs. PF63e Oil Filter

AC Delco upgraded the PF63 to become the PF63e. The company modified the bypass pressure release from 12 to 22 pounds.

It indicates that the bypass pressure release operates around the oil filter’s outside edges. When the valve opens, the pressure on both sides is quite near if the filters function properly.

The oil is heavy upon a morning startup. It opens up, allowing unfiltered raw oil to enter. However, it doesn’t matter. Because it cannot flow, you will pressurize one side more than the other. Therefore you shouldn’t starve the engine when the oil gets thinner.

Below are some of the main differences between the AC Delco PF63 and the PF63e oil filters;

Inlet Holes

The PF63e features eight inlet holes and a bypass valve on the bottom. It also includes a nylon plastic inner cage and many grooves. It includes a lot of threads and a nitro rubber gasket that you can remove.

The PF63, on the other hand, has six inlet holes and a bypass valve with holes down below the metal core, although it does not have as many threads as the PF63e. There are around three threads. It also features a nitro rubber gasket that You may readily remove.

The base plates are very different from the PF63e, the inner core.


The PF63e is 228 grams in weight, whereas the PF63 is 273 grams. The PF63e’s base plates weigh around 108 grams, whereas the PF63’s base plates weigh 100 grams. The PF63e’s filter element weighs 35 grams, while the PF63 filter element weighs 893 grams. Furthermore, PF63e media weighs 22 grams, whereas PF63 media weighs 19 grams.

The PF63e’s bypass valve weighs ten grams, whereas the PF63’s bypass valve weighs eight grams.

Base Plates

The PF63e’s base plates have more holes than the PF63. It contains around 13 holes distributed across the filter and two more holes of the same size. In addition, the PF63e has more grooves and threads than the PF63.

However, the PF63’s base plate is more appealing than the PF63e’s. It appears to be more robust, and the drain back valves are nitro rubber. They also do a good job of concealing the gaps.


As a glued seam, the PF63e has approximately 65 pleats. It comes with felt and caps. It also has a significant amount of room. It is a cellulose filter medium with a micron rating of 98 between 25 and 30 microns.

In the inside seam of the PF63, there are about 51 pleats. The filter media is comparable to the PF63e and has the same filtering numbers. It just has fewer pleats. The pleats are deeper since the metal end caps bypass value down there.


When it comes to thickness, both oil filters are roughly the same. They both have a thickness of 0.41 mm. The width, however, is where the distinction is made. The PF63e measures 3.44 inches wide, whereas the PF63 measures 3.03 inches wide.

When they are cut open and spread out, they both balance out due to the PF63e’s larger pleats. When extended out, they’re nearly identical: the PF63e is 45 inches long, and the PF63 is 45 and a quarter inches long.

The PF63e is 0.83mm thick at the seams, whereas the PF63 is 0.87mm thick.

While both oils have their marked differences, they also have their similarities. A new torque standard has been made available. This standard is for installing ACDelco spin-on oil filters for gasoline-powered GM cars such as the AC Delco PF63 and PF63e. The company created the updated standard in response to potential oil leaks. These leaks may have occurred during an earlier oil change service. Sometimes the oil leak may not appear for many thousand kilometers.

Is The AC Delco PF63e better than the PF63?

According to ACDelco, the better performance of the new filters is due to a revamped bypass valve design. This design includes a compression spring-loaded nylon poppet that surpasses the current filter. These filters fulfill the performance requirements of the GM Powertrain.

The following enhancements have been made: 

  • The bypass valve opening pressure has been upgraded from 100 to 150 kPa and is statistically more competent.
  • Increased resistance to water buildup
  • The filter material is no more potted in glue, which might obstruct the filtering area.
  • Superb cold-weather performance to -30° C with dexos1 oil. Hot oil durability is enhanced due to adhesive removal.

The ACDelco Professional oil filter can help you get the most out of your car. It’s a high-quality component that keeps undesirable particles out of your system. Once correctly installed, this item can help keep your automobile operating smoothly. The item can improve fuel economy and contribute to cleaner emissions. 

This item is a high-quality, well-made vehicle replacement part. It’s designed to perform as well as, if not better, the original part. This particular item is intended to fit a variety of automobile models. Use it to get back on the road quickly and safely.

The benefits in a nutshell include;

  • It has ten times more open space in the core for enhanced flow despite being 20–25% smaller in size and having more filtering media.
  • It has a recyclable steel shell, threaded plate assembly, and a leaf spring.
  • It contains a non-metallic cartridge that may be utilized as a source of energy after being crushed to extract the oil.
  • It has a lubricity gasket for lowered installation torque.
  • It enables simple installation in blind installations with a complete cover baseplate.
  • It has a nylon core for greater strength and improved flow properties.


What vehicles does an AC Delco PF63 fit?

AC Delco is a General Motors subsidiary and the OEM supplier for all GM cars, including Cadillac, Chevrolet, GMC, Hummer, Saturn, and Opel. 99 percent of the automobiles, light trucks, and sport utility vehicles on the road today may use oil filters made by ACDelco.

Can I substitute PF63 with PF63E?

You can use the PF63 filter. However, it is not advised to use it due to the PF63E’s higher bypass valve pressure.

What is the AC Delco oil filter’s micron rating?

AC Delco oil filters have exceptional characteristics, with a single-pass efficiency of 98 percent at 25–30 microns.


The ACDelco PF63e is a spin-on oil filter with several applications. It is a good choice for automobile owners who wish to provide their vehicle’s engine with more security.

Both filters work effectively. They are both top-notch. The PF63e has more threads and grooves than the other one, which is the only distinction between them. Choosing whether you want more threads or more grooves is the only decision you need to make.

However, because the PF63E has a larger bypass valve pressure, you should always choose it.


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