Bypass Oil Filtration

[Delraco]

Has anyone installed a kit like this on an E30 yet? I've been having trouble finding any.

http://www.amsoil.com/bypassfilters/instructions/BMK21_BP83.pdf

Works like this:

http://www.youtube.com/watch?v=klcBRnyCSvo&feature=related

Something like every 5 to 7 minutes, the entire contents of the oil system will eventually pass through the synthetic filter.

Looks neat, and it's $191 for a kit.

[MR 325]

Most people's engines here are valued at about as much as that kit. ;)

Seems cool though.

[Delraco]

You have a point..
I could see this setup being practical and saving money in the long run, but only for fresh motors. Otherwise, moot point.

[jlevie]

The filter in the car is a flow through type, meaning that all the oil the passes through the engine first goes through the filter. I don't see how a bypass type filter would be more effective and can see it lowering oil pressure.

[jeffnhiscars]

Most people's engines here are valued at about as much as that kit. ;)

There's a cost\benefit challenge for ya

[Delraco]

The filter in the car is a flow through type, meaning that all the oil the passes through the engine first goes through the filter. I don't see how a bypass type filter would be more effective and can see it lowering oil pressure.

The oil pressure could possibly be an issue, however, the idea is that at any given time only a small portion if your oil flows through the secondary synthetic filter, which is designed to remove particles of a much smaller micron, therefore keeping the oil cleaner longer without causing oil starvation.

Diesel trucks, hondabros, and many others have used this setup and have great things to say about it.
Just curious if anyone's tried it on an e30 yet.

[chucker]

Years ago maybe 20 or so. I installed an industrial filtration unit on a hydraulic crane system that was at the time the 4th largest cold (food) storage in the southeast. This thing was ancient when I took over the department. It filtered down to .5 or 1 micron and only about 5% of the oil was filtered at any time. It never had any repair issues after that. the hydraulic oil was always as "new". if our cars came with this bypass filter system they would never wear out. you would never change the oil.


chucker

[FLG]

Link to the kit?

Sounds good!

[stamar]

Years ago maybe 20 or so. I installed an industrial filtration unit on a hydraulic crane system that was at the time the 4th largest cold (food) storage in the southeast. This thing was ancient when I took over the department. It filtered down to .5 or 1 micron and only about 5% of the oil was filtered at any time. It never had any repair issues after that. the hydraulic oil was always as "new". if our cars came with this bypass filter system they would never wear out. you would never change the oil.


chucker

you also need a pre oiler, usually electric. usually available from the same sources as bypass filters.

Well as long as you can take it with you to your next car its an ok purchase.

[jlevie]

I could see the advantage to a system that would filter smaller particles if the vehicles were operated in a dusty environment. But in that case replacing the existing filter with a much larger external filter would reall be the better choice. A bypass type filter, like this, has the most advantage in applications where the life of the fluid is mostly determined by the build up of "filter able contaminates", like hydraulic systems or oil bearing systems. In internal combustion engines the life of the oil is mostly a function of the amount of combustion blowby products that are in the oil. And that is a strong function of the type of driving the car sees, which is what really determines the change interval.