Best Oil Filter for Synthetic Oil

We are harder on our vehicles now days than we ever have been. Hypermiling to try to get every last mile out of a gallon of gasoline. Romping on the gas from every stop light like we’re racing for pink slips. The length of time between oil changes is getting longer and longer. Full synthetic oil has allowed us to increase that distance more and more between oil changes. They even offer an oil aimed at annual changes now! Or course that depends on how many miles you might drive in a year! So what is the best oil filter for synthetic oil that can hold up 10,000 miles? 20,000? A whole years worth of driving?

Obviously, you need the best synthetic oil to keep everything lubricated and running smoothly. And to help keep that oil clean you need a high quality oil filter. An oil filter’s job is pretty self explanatory. They filter out any impurities in the oil. Depending on the filter quality, it may filter out a higher percentage of impurities than others, catch much smaller sized impurities, or just last longer.

Each vehicle will require it’s own specific oil filter. You will find many different manufacturers, each offering multiple versions of filters, all having different features. Be sure to check and see which model number you need depending on the brand of oil filter you decide to use. You can perform an oil filter cross reference to find the right filter for your vehicle.

Finally, here are some of the more popular options when it comes to a high quality, premium filter that would help keep your synthetic oil clean and well filtered.

PurolatorBOSS Oil Filter

The PurolatorBOSS is the top of the line oil filter from Purolator, the company that invented the first oil filter back in 1923. It offers 99% “Dirt Removal Power” which is Purolator’s trademarked marketing speak for the filters filtration level from specific testing. The BOSS was engineered for full synthetic oils and offers up to 20,000 miles of protection for your engine.

  • 99% Dirt Removal based on ISO 4548-12 at 25 microns on PBL30001

FRAM Ultra Synthetic Oil Filter

FRAM’s high end filter is the Ultra Synthetic. It is engineered to be paired with synthetic oil. Like the PurolatorBOSS, it also provides up to 20,000 miles of engine protection when used with an appropriate synthetic oil.

  • 99%+ filtration efficiency – FRAM Group testing of average filter efficiency of PH8A, 3387A and 4967 or equivalent FRAM TG or EG models under ISO 4548-12 for particles greater than 20 microns.

Mobil 1 Extended Performance Oil Filter

Mobil 1 offers up a guarantee for their oil filter. Stating it can provide one full year of guaranteed protection when used with their Mobil 1 Extended Performance oil. That oil advertises up to 20,000 miles of wear protection. So the fine print on their “full year” is 1 year or 20,000 miles, whichever comes first.

  • 99%+ efficiency rating based on removing particles greater than 30 microns

Royal Purple Extended Life Oil Filter

Royal Purple manufactures only one type of oil filter – the super-premium Extended Life Oil Filter. Royal Purple oil filters are fully compatible with all synthetic and conventional oils. Royal Purple states this oil filter can offer 15,000 miles of engine protection when used with full synthetic oil.

  • 99% of particles 25 microns and larger, and 80% of particles 10 microns and larger
  • Average beta rating based on ISO 4548-12 multi-pass test methods:
    • ß25 = 100 (at 25 or greater micron, media is 99% efficient.)
    • ß20 = 75 (at 20 or greater micron, media is 98.7% efficient. Also considered absolute rating.)
    • ß10 = 5 (at 10 micron or greater, media is 80% efficient.)

Bosch Premium Oil Filter

Premium engine performance requires a premium oil filter. Bosch Premium Oil Filters protect your engine by keeping harmful particles and dirt out, preventing premature wear and engine failure. Premium oil filters not only fit the same way as original OE filters, they utilize an exclusive blend of natural and synthetic materials in the media for superior oil filtration and increased engine protection.

  • 99% efficiency based on ISO 4548-12 at 20 microns on 3500s
  • The Premium filtration media has the capacity to hold up to 14 grams of dirt in the filter media based on ISO 4548-12 at 20 microns on 3500

Our Conclusion

These are just five of many oil filters on the market. However, they are five of the more popular, well known brands that have significant feedback and reviews online. While you have to take user reviews with a grain of salt, not everyone is an expert after all, the majority trend is usually a good indicator. One detail we will point out. All five of these filters advertise a 99% or better efficiency rating for filtration. But if you look at the details we posted, those ratings are based on catching different size particles. Go back up and take a second look if you missed it. I don’t know about you, but I would rather catch 99% of 20 micron sized particles versus 99% of 30 micron or above particles. What do you think?


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