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Date:         Thu, 14 Jan 2010 11:59:43 -0600
Reply-To:     John Rodgers <inua@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Rodgers <inua@CHARTER.NET>
Subject:      Re: oil filters
Comments: To: mcneely4@COX.NET
In-Reply-To:  <24826966.6169.1263481348107.JavaMail.mcneely4@127.0.0.1>
Content-Type: text/plain; charset=UTF-8; format=flowed

Dave,

I didn't get that out of Dennis' comments. As I understood it - the problem arises when you use a high mileage oil with a filter designed for low mileage - Mobil One 7000-7500 mile oil change vs a Mann/Mahle 3000 mile filter. If you run the oil to the recommended mileage for the oil change - you have far exceeded the capacity of the Mann/Mahle filter which is maxed out at 3000 miles.

John Rodgers Clayartist and Moldmaker 88'GL VW Bus Driver Chelsea, AL Http://www.moldhaus.com

Dave Mcneely wrote: > So, Dennis -- are you saying that Fram filters do a better job than Mann > or Mahle? Many list members believe otherwise, and some have advised > that Fram filters are not at all suitable for a waterboxer engine. It > is a lot easier to simply go down to a local auto supply and pick up a > filter than it is to make sure to order up from an online vendor (for > me, anyway). I believe one complaint against Fram filters was that they > will "blow out," or the media will collapse under pressure. One list > participant said that he found a Fram filter he removed had collapsed > internally, and was simply not filtering. > > I'm certainly not an expert on filters. Fram sells two different > filters, one more expensive, and supposedly more effective, than the > other. Is that one ok, the cheaper one not? > > Thanks, David > > > On Wed, Jan 13, 2010 at 6:56 PM, Dennis Haynes wrote: > >> As for quality, (consistency, good design, heavy duty construction) >> both the >> Mann and Mahle filters are quality products. I do not wish to put them >> down. >> Where those products fall short is their ability to maintain adequate >> filtration for extended oil drain intervals. In a number of vehicles >> including mine is results were wear metals and silica would reach >> unacceptable levels in less than 7,500 mile intervals. I have also >> done some >> experiments changing just the filters to see if new filters would >> clean >> things up. Both the Mobil 1 brand and the Fram Tough Guard have shown >> consistent ability to clean up an engines oil to acceptable levels. I >> am >> sure that both of these companies now offer premium products ( better >> filter >> media) but I have yet to see them available here. Maybe someone out >> there >> can get us the good stuff. >> >> Dennis >> >> -----Original Message----- >> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On >> Behalf Of >> Alan Felder >> Sent: Wednesday, January 13, 2010 12:20 PM >> To: vanagon@GERRY.VANAGON.COM >> Subject: Re: Motor Oil (Synthetic) >> >> Dennis - I have an 82 Diesel and have purchased MANN oil filters for >> my next >> few changes. I noticed you mentioned MANN and MAHLE filters twice, >> inferring "do not use". I have always thought of these as being >> quality >> filter manufacturers. What are the reasons for not recommending them, >> or am >> I reading your statements incorrectly? >> >> On Tue, Jan 12, 2010 at 11:13 PM, Dennis Haynes >> wrote: >> >>> some point we have a thermal run away. On the 2.1L engines the oil >>> cooler >>> was added to help this and dynamic oil pressure warning system >>> detects >> this. >>> No a Mann or Mahle filter does not fix it. >> >> >> >> >>> 50. My 1988 Fox can go as high as 14,000 miles with good filters,(not >>> Mann >>> or Mahle). The Vanagon oil tends to need replacing due to nitration, >>> (high >>> ring temps >>> >>> -- >>> Alan Felder >>> Austin TX >>> 82 Diesel Westy >>> > >


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