Date: Fri, 29 Aug 2008 12:48:16 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: NVC - Good article on technical analysis of engine oil filters
In-Reply-To: <082720081634.15819.48B5820A0002635400003DCB2207020953979A09019B0E0D9A9D@comcast.net>
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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
>