No Oil Filter is better—none! I have used this product since May 2020. My diesel engine purrs like a content kitten, and I have gone 15K miles between oil changes.

I installed a bypass filter on my 150 HP generator that I use for running a pivot sprinkler and water pump, historically I would have to change the oil (AMSOIL 15W-40) every 250 hours I had run on it; per the oil analysis (Blackstone). for the second year in a row where I exceeded 600 hours on the oil and the analysis has recommended I go another 70-100 hours before checking it again or changing the oil because it looked so good. This filter does only have a 1 year warranty, so I will be changing it at least once a year but it has paid for itself in the first two years and then some.

Simple to install on a 1990 855 Big Cam Cummins. Seems to be doing a good job at keeping the oil clean. 1500 miles into the oil change and the oil is still gold colored.

I am very pleased that I bought the AMSOIL oil bypass kit! I mounted it up on top of my engine to have easy access to it and it is a breeze when it's time to change it! I recommend it to anyone to get it and get more protection for your engine!

I have used the dual filter system on 3 Tow Vehicles since 2000, and have never had an oil problem. One of the vehicles now has over 200,000 miles on it now, and still going strong.

Item works great as is… but I have a large magnet on the bottom for more protection, maybe amsoil can incorporate in there filters

Been using Amsoil Products for 30+ years

My 2003 Dixie Chopper lawn mower came with a BP90 Amsoil bypass filter. The mower is 21 years old and runs as good as when it was new. I feel like the bypass filter has saved me a lot of money in not having to by a new motor or mower because of a worn motor!

I have had the Dual Filter system on 3 GMC Pickups that towed my 10,000 pound Airstream all over all the Lower 48, most of the Canadian Provences, two summers in Alaska, and two summers in Newfoundland. For several years I always sent oil off for testing when I changed the oil at the end of the year, and never got a report stating I needed to change the oil. I no longer send oil off for testing, and have never had a problem. I Chang the full floe filter twice per year, and the Bypass filter once per year, and always use the top quality Amsoil at the time. My last two trucks have been DuraMax Diesels, one of them now owned by a friend now has over 200,000 miles on it, and still pulls his travel trailer all over. It still follows my oil change program, I supply the oil and filters for the truck.

What a difference this has made in the oil quality. 2 microns vs. 20 microns of filtration makes a huge difference. With the cost of oil and filters today this will allow me to extend my change intervals. I should have the return on the investment in 2 oil changes, not to mention the overall protection of my engine.