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Date:         Fri, 29 Aug 2008 12:48:16 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
Comments:     RFC822 error: <W> MESSAGE-ID field duplicated. Last occurrence
              was retained.
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: NVC - Good article on technical analysis of engine oil filters
Comments: To: rubatoguy@COMCAST.NET
In-Reply-To:  <082720081634.15819.48B5820A0002635400003DCB2207020953979A09019B0E0D9A9D@comcast.net>
Content-Type: text/plain; charset="us-ascii"

Contrary to a lot of postings the Waterboxer engine is not particularly hard or demanding of an oil filter. I used the regular Frams for many years without incident. The Fram "Tough Guard" is not like the normal Fram filter. It uses a much better filter material and the check and bypass valves are of much higher quality. The best part is they have a very low forward pressure drop. It is a good filter.

Back in 2004 I purchased a large motor home. Both Caterpillar (engine) and Allison recommended oil testing. I got set up with the Caterpillar S.O.S. program. Buying the kits in bulk (20) I get the cost down to ~$14. So I started doing oil testing on my cars and then pushing it on customers.

I have found that different engines and driving conditions put different strains on oil.

The Waterboxer keeps the oil clean and uses little of the additive package. What it does do though is break the oil down oxidizing it and creating nasties even with Mobil one. If you do a lot of high speed high load driving, 7,500 to 8,000 miles is a good limit.

In contrast in my Fox, the oil lasts forever except for silica and wear particles. My guess is that the placement of the air inlet allows road stuff to get in. The Mobil 1 filter was actually able to clear this up without an oil change. It is made for Mobil by Champion labs and it is expensive.

I have come across 4 other engines using Mann or Mahle filters that should poor filtration performance for extended drains. One is my '92 600SEL Benz. This is just a cartridge filter. I now go to the dealer and give them $20 for a filter. That element does not look like the one in the store Mann box. If Mann is the OEM supplier for Benz, the filter at the dealer is defiantly different than what goes to the stores.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Todd Last Sent: Wednesday, August 27, 2008 12:34 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: NVC - Good article on technical analysis of engine oil filters

I agree - the proof is in the pudding. I'm surprised that you have gotten good results with the Fram filters as they have been slammed in the past. Perhaps that is not true with the tough guard filters.

http://people.msoe.edu/~yoderw/oilfilterstudy/oilfilterstudy.html

Where do you get your oil analysed?

One could argue that the intervals at which you change your oil and filters is more important than what brand of oil and filter you use...

It would be interesting to see if the people on the list with high-mileage engines have any comonality with what oil filter they use.

regards, Todd '88 westy

-------------- Original message -------------- From: "Dennis Haynes" <d23haynes57@hotmail.com>

> What really matters is the results. What is the actual effectiveness of > the filter, in your engine? Oil testing will tell you. Everything else is > non sense. Oil testing can be done for as little as $15. With it you will > learn the following: > Do I really need to change the oil this often? Why? > What contaminants are getting in it? > Is there any antifreeze leaking in there. > Is the oil maintaining viscosity? > Is it breaking down? > Is my engine wearing prematurely? > Is unburned fuel washing past the rings? > > Etc. > > I no longer use Mann or Mahle filters. Fram "Tough Guard" and the Mobil > "1" are proving their worth. I will be trying others. > > Dennis > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Todd Last > Sent: Wednesday, August 27, 2008 12:06 PM > To: vanagon@GERRY.VANAGON.COM > Subject: NVC - Good article on technical analisys of engine oil filters > > > > http://findarticles.com/p/articles/mi_m0BQH/is_7_49/ai_n26972065 > > > Engine oil filters : technical and empirical evaluations of anti-drain > back systems and element tubes > Outdoor Power Equipment, June, 2006, by Paul Dilger, parts 1 and 2 > > Unfortunately the articles have the photos omitted, bit it is interesting > none the less. > > > Todd > '88 Westy >


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