RE: Couple o' questions (ATF in the oil, oil filters and Redline)

[Peter Henriksen <peterhe@microsoft.com>]

Thanks, but I'm already using synthetic (Mobil 1) and have been changing
every 3,000 or so miles.

I'm actually questioning the dealer's judgment at this point. I wonder
if they're just picking it up from the service history and then
forwarding it.

BTW, how would they tell without changing the oil?
- peter, peterhe@microsoft.com, redmond, wa
  91 200qw
  94 acura legend gs
  80 mazda 626
  O-

>----------
>From: 	rsco@lubrizol.com[SMTP:rsco@lubrizol.com]
>Sent: 	Thursday, April 11, 1996 12:57 PM
>To: 	quattro@coimbra.ans.net
>Cc: 	Peter Henriksen
>Subject: 	Re: Couple o' questions (ATF in the oil, oil filters and
>Redline)
>
>peter, peterhe@microsoft.com wrote:
>>
>>3) (The weird one) My Acura (yes, I know, but the other 2 questions were
>>Audi...) seems to have a lot of sludge build-up. The dealership points
>>this out every time they see it and have been saying that there's
>>nothing I can do about it. However, the last time I was there I actually
>>talked to one of the mechanics and he suggested putting a pint of
>>Automatic Transmission Fluid (ATF) in with the oil for the next 3 oil
>>changes and do those 3 oil changes 1,000 miles apart. The ATF supposedly
>>contains a lot of cleaning agent(s) that will dissolve the sludge and
>>enable it to drain with the used oil. Does this sound reasonable to you
>>guys?
>
>Forget the ATF. When we talk about sludge, we mean a thick (mayonnaise
>like) build-up on non-moving parts. Sludge is a result of insolubles
>overloading the lubricant.These insolubles could be dust,dirt,wear
>particles, or oxidation products.  Even if you could remove all the
>sludge
>from your engine (regardless of the the means by which you do it), the
>build-up will almost certainly recur. Think about what could be causing
>the
>build-up in the first place.
>
>things to consider (in order of importance)
>
>Is your air-filter being by-passed?
>
>If not, you should consider going to a shorter service duration (
>change
>your oil more frequently).
>
>Consider a synthetic. They have greater solvency than pertroleum based
>oils, and will leave your engine cleaner. Many also include better
>additive
>packages, and may allow you to get by with your current drain interval.
>Rather than using ATF, why not just substitute some synthetic oil for
>petroleum oil in your next change. then drain after a couple thousand
>miles. Much of the sludge should be dissolved by then.
>
>Rob
>
>________________________________________________________________________
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>Robert S. Cohen       NewMedia Inc.             The Lubrizol Corp
>rsc2@po.cwru.edu      503 E 200th St            29400 Lakeland Blvd  MS
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>