I was looking at Royal Purple's website and this caught my eye.

http://www.rpmoil.com/index.php?main...roducts_id=173


Has anyone tried this? I'm really interested in a reusable oil filter that works, especially if it is better than those Purolator Super premium filters or the K&N ones.

-Max

 

lookup bypass filter on google, if you really want to extend your oil life.

 

I took a look at Amsoil's website
http://www.amsoil.com/StoreFront/bf.aspx
(came up in the recommended google seach). The Bypas filter system sounds nice but is more expensive, more intrusive, more difficult to install, and the filters require replacement (at intervals much longer than standard filters), and despite the higher level of filtration there is no magnet in this unit.

I know I have very limited knowledge so I'm counting on the garage engineers out there.

Are these bypass filters harder in your system (wouldn't they require mor pressure to double filter at that "2 microns"?

Wouldn't the reusable filter work just as well if not better?

And it sounds like they imply that the bypass filter extends the oil life. How is this possible, I thought you'd still suffer from thermal breakdown (non sythetic oils in my cars)?

-Max

 

Oil and filters are cheap enough; I'd rather not risk it, and go the traditional route every 2k-3k miles.

 

what's wrong with using OEM filters?

better question, why go with a reusable filter? $177 is about 1-1.5 years worth of regular one-time use filters.

 

Bypass filters work in addition to the oem oil filter, and not in line with it. They take a small amount of oil usually from a T on the oil pressure line, and filter it back down through the filter to the pan (hence bypass). It would be easy to install on an Rx7, the return line could be plumbed into the oil cooler return. One of the best designs uses a roll of scott toilet tissue or paper towels depending on the size of filter, so the replacment is cheap and obviouly easily available. The DoD uses these very widley in hummers/trucks/generators and all manner of engines, and acording to the makers (several designs and brands are available) of the filter you can basicly stop doing oil changes and change the filter instead.

I would still change the oil, but might push it out a bit to maybe 5K (I usually change at 2.5K) once I get one of these installed.

links:

http://www.bypassfilter.com/index.htm

http://utterpower.com/oil.htm

 

30 micron is a little scary for me.

Amsoil Nanofiber filters, filter down to 15micron and even down to 7 micron. I ordered and actually received today, 2 gallons of amsoil and one filter for my car. They say it will last up to 15,000 miles on one change. Im going to submit my oil for analysis at 5000 miles and 10,000 miles to see what the condition of the oil really is.

 

I like the fact that they mention the use of neodymium magnets... however at 80 degrees celcius the magnetic feild on these magnets are rendered uselless as the strength of the magnetic feild is exponentially less with increasing temperature.

-Ben

 

You are quite hardcore....

 

it is really pretty though, too bad it's not a smaller micron screen. it looks similar to the ones my buddy uses at the powerplant he works at.