RE: I-5 Lifters and Marvel Mystery Oil

[Paolo.Trione@semagroup.it]

I've found the same trouble on my A4 1.8T quattro using Agip sint2000.
No solutions at now...

> -----Message d'origine-----
> De:	James M. De Arras [SMTP:jmd@westlab.com]
> Date:	mardi 3 août 1999 13:08
> À:	'Christopher Ritchie'; quattro list
> Objet:	RE: I-5 Lifters and Marvel Mystery Oil
> 
> Mine are also sometimes noisey  I've found that using a good engine oil
> flush when changing the oil quiets them down until the next change.
> 
> Jim
> 
> -----Original Message-----
> From: Christopher Ritchie [mailto:cjr1@gte.net]
> Sent: Monday, August 02, 1999 7:25 PM
> To: quattro list
> Subject: I-5 Lifters and Marvel Mystery Oil
> 
> 
> The lifters on my I-5 engine are noisy at start up.  The noise goes away
> after the engine runs for a few minutes.  I am using 15W-50 Mobil 1 in the
> summer and 10W-30 Mobil 1 in the winter.  This is in New England.  The oil
> is changed every 3-5K miles along with the Audi OEM oil filter.  Adding
> 1/2
> quart of Marvel Mystery Oil ("MMO") will quiet the lifters right down.
> However, they go back to their "clicking and clacking" when I change the
> oil
> if I do not add more MMO.  I was hoping that a one time application of MMO
> would clean out any gum and varnish from the lifters so that they would
> operate quietly from then on.  No such luck.  I do not mind adding the MMO
> at every oil change.  But I wonder what the long term effect will be.  Am
> I
> just thinning the oil?  Or does MMO really have magical properties with
> regard to lifters?  After spending a premium for synthetic oil I would
> like
> to get the full benefit from it.  Adding an additive just does not seem
> right.  Maybe this is just my prejudice against oil additives.  Any
> experience from long time MMO users?