Fumoto Oil Drain Plug
b.benz at charter.net
Thu Apr 8 16:24:06 EDT 2004
> From: Peter Schulz <pcschulz at comcast.net>
> Gary Martin's question was : "Why would a car manufacturer recommend these
> and my reply was " because they (the manufacturer/dealer) wants you to come
> back soon and buy another (sic) car. "
> And just to be clear, although you recommend the orange filter, not all of
> the orange filters that fit the audi engines have the anti-drain back
> valve, and furthermore...have consistently tested worse for capturing small
I don't recommend any brand of filter, I just use any brand. The correct
filter type will have both an anti-drain back valve and an over pressure
> So going with your line of thinking, by using a new black filter that I buy
> at less than $5, I have the same ability to capture particles with the new
> filter that you have at 15k ( when your orange filter has accumulated
> sufficient debris to "improve" its filtering capacity.) - too bad about
> those first 15kmiles, when those small particles weren't captured.
Your engine won't know the difference between 5 and 15 micron particles.
> At 03:22 PM 4/8/2004, you wrote:
>> Who is the "they" to which you refer that want you to to buy a new oil
>> The serious answer to your Q is that all filters improve in particle size
>> filteration with age/use as they accumulate filtered out debris. The
>> usefulness of this continuing improvement diminishes only when the flow
>> through the filter is restricted sufficiently to cause the filter's bypass
>> valve to crack open thus allowing some of the oil to bypass the filter. So,
>> at 15K your filter is operating at peak efficiency. DFI if IAB!
>> I'll stick with my used Orange one rather than a new black one!
>>> From: Peter Schulz <pcschulz at comcast.net>
>>> cant resist this one....
>>> Because they want you to come back soon and buy a new one
>>> At 05:45 PM 4/8/2004, motogo1 wrote:
>>>> Just a question. I know filters are cheap, but in the maintenance
>> manual for
>>>> my S4, it recommends oil change at 7500 and filter at 15,000. Why would a
>>>> car manufacturer recommend these specs??
>>>> Gary Martin
>>>> 94 UrS4
>>>> 91 200 TQA
> Peter Schulz
> 1990 CQ (perpetually awaiting S2 3b engine transplant)
> 1991 200 20v TQW indigo mica
> 1991 200 20v TQW titanium grey
> Chelmsford, MA USA
> peter at audifans.com
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