Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (July 1996)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Tue, 28 May 1996 08:07:06 -0700
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         jwakefield@4dmg.net (john wakefield)
Subject:      FRAM specualtion re pressure

Terry Tan wrote:

"It is common knowledge among us who are on the list awhile that Fram filters are unsuitable for Vanagons."

I offer this speculative response to observations that FRAM oil filters used in Vanagons result in lower oil pressures: Lower particulate threshold passing media combined with lower total media surface area. In particulate passage tests, FRAM has shown up as a top performer for years. This indicates to me that they have elected to use a finer pass media than most competitors. As to whether the cost per unit area of this is higher than coarser media, I don't know that either. But I did find it interesting to see a FLAPS point of sale product demonstration supplied by WIX, who's product box seems to claim WIX is an Original Product Manufacturer for quite a few others marketed labels. The demo consisted of a FRAM and WIX oil filter apparently from identical application specifications. Each was cut around its circumference to allow easy inspection of its media. Just guessing based on what I saw, I'd think the accordion folded media had about twice the unfolded surface area in the WIX compared to the FRAM. There are so many assumptions integrated into this speculation that I offer it only as a first conjectural comment. I could be completely wrong. If someone knows of a person who wouldn't bias their comments to favor a company's economic interests, and who could address this anomaly well, please do a little arm twisting to get their explanation posted as to why the ordinarily considered excellent Fram product apparently performs so poorly in Vanagons.

John "Do not look into laser with remaining good eye."


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.