Has anyone ever added an oil bypass kit to there Volvo vehicles. I'm looking to add on to my car system but don't know how to do it at this point. Looking to get better filtration going for the oil. Within 500 - 1000 miles my oil is a light chocolate brown color. So that tells me that 1, the oil filter ( Mann filter) can't do the job and 2) the internals are very dirty.

Let me know. Thanks.

One of the truck magazines that I get tested three bypass systems. Their conclusion - the only difference that they found was the impact of the extra oil that the systems add to the engine's capacity.

I have owned several old vehicles that I dosed with an engine flush - one of them, a '68 Ford 6 cylinder suffered two collapsed lifters - I had to remove all the lifters and clean them.

BTW - an egg carton makes a great lifter holder.

Bob, Just a couple of things to keep in mind.
Volvo .....engineer's engine longevity pretty well.

I am not sure where you live, but if you experience cold weather....
the oil will be thicker (viscosity issue) and may collapse a 2 micron filter
or open the by-pass which defeats the filter and can release a slug of crud into the engine... Long story, but this was learned the hard way by the military.

Klaus, I agree, shortly after changing the diesel oil and filter on my boat engine it looks as pretty black .....

That kind of small particulate will not be caught by a filter, or two. All IC engines will get dirty oil, there will always be compression gasses forced passed the rings - not a lot, but some. And over time that will change the color of the oil.

A dirty engine, like mine used to be, benefited from synthetic oil and a wash with one quart of ATF for 500 miles (that oil change, it's first one after I bought it, used regular oil). Three years later, a lot of the varnish build up on the cams has gone away. Yes, the oil still gets dirty after 3-4K miles, but that is all right.

You should see the oil in my diesel!!! Black as the inside of a dirty chimney, 10 minutes after changing the oil! And the engine no longer burns oil.
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Keeping it running is better than buying new

I am on my third oil change with the car at this point since buying it this past August 2017. I have used Amsoil 5w-30 (ASL) product code for my oil changes. This has designed into it a cleaning agent, but like I said, my only option for a cartridge filter is a Mann unit. There good, but no where near the best. They can go a max of about 7k miles. I'm looking at adding an Amsoil BMK21 filtering kit that will filter down to 2 microns. At the same time it will increase my oil capacity by about 1 quart as well.