Re: I-5 Lifters and Marvel Mystery Oil

[ti@amb.org (Ti Kan)]

Christopher Ritchie writes:
> 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.
> ...

It is actually normal for some click clack a few seconds after startup.
It takes a few seconds for oil pressure to build up in the lifters.
Unless you have noise that persists for a long time I wouldn't worry
about it.  Make sure you use the correct OEM oil filter with the
anti-drainback valve.

While some people seem to swear by MMO, I tend to advocate *not* using
any more additives if you start with a good oil, synthetic or not.

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
-- 
    ///  Ti Kan                Vorsprung durch Technik
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