An oil bypass filtration system is a separate filtration system that operates independently from the full-flow filter that comes on the truck from the factory. A bypass filtration system constantly filters engine oil at its own pace, so the oil can be filtered thoroughly and evenly. It doesn't need to be bothered with making sure adequate oil flow is taking place to supply the engine with its needs. Its only concern is filtering contaminants. It lets the spin-on filter grab all the big stuff that would be disastrous to your engine while it methodically and scientifically cleans the smaller impurities from the oil that cause day-to-day, grinding engine wear.
We ordered and installed the FS-2500 bypass filtration kit from Filtration Solutions Worldwide. We were impressed by the fact that Filtration Solutions was able to prove through third party lab testing that its filter element is able to effectively filter contaminants down to 2.78 microns.
This means that we will no longer have oil filled with 25 micron-sized particles sanding away at our caps and bearings. And since the tolerances are generally between 2 and 22 microns in our engines, we only have to worry about .78 microns sanding away at the internals. We just eliminated about 90 percent of the engine wear that the manufacturer deems acceptable. This equates to dramatically extended engine life. It also equates to dramatically extended oil life because the oil is cleaned as the engine runs.