[Vwdiesel] Oil for Wearing in Piston Rings

[James Hansen]

I've been using 15-40 Rotella T as well, on everything, silly race car
motors and all.
Big thing for me is DO NOT IDLE the motor slowly.  Spark it up, after you
are sure it isn't making bad noises, you have good oil pressure, and the
coolant level is good, rev it to 2k rpm and hold for 15 minutes, watching
the heat, and stop after the 15 min are up. Shut off, check it over.
Refire, get on the road where you can play around, in a highway gear, so it
has to pull when at full throttle, but not lug, say third gear in our
volkses.  Alternately throttle to the floor running the rpm up to half of
redline, and allow the engine to decellerate until back to nearly idle, full
throttle again, let come to just off idle, alternate for 10 cycles.  Pull
over, idle at 2k, check stuff.  Back on the road, this time accelerate to
3/4 of redline and back down to idle-ish. Pull over recheck heat, pressure,
coolant.   Back on road, cycle 10 times this time to redline, pull over,
check stuff, you are done.  Back to shop, check fluids, change oil, take oil
filter apart look for piston dandruff.  Refill with oil& filter, you're good
to go. My flat tappet race car motors get Brad Penn high zddp race oil, the
rest gets rotella t.  Rotella has been fine for everything except high rpm
high lift flat tappet non roller motors.  I had too much cam wear which was
fixed with the high zddp oil.

The high cylinder pressures you are creating by extended on off throttle
cycles in increasing rpm cycles are much like a honing process, that "breaks
in" the rings, actually laps them to match the bore quickly while the
crosshatch marks are sharp and friction is high.  The decelleration phase
allows the cylinder interior surface to cool, and wash off the metal
particles that accumulate from wearing in.  Girly driving the thing is NEVER
successful.  It may break in but will not seal as well over a variety of
operating conditions.

-james

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of brian hoeft
Sent: January-14-11 12:27 AM
To: LBaird119 at aol.com
Cc: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] Oil for Wearing in Piston Rings

2nd that!

I've been breaking in with conventional 15-40 and Lucas break-in additive.

-Brian





.

On Thu, Jan 13, 2011 at 10:44 PM, <LBaird119 at aol.com> wrote:

> In a message dated 1/13/2011 12:25:04 PM Pacific Standard Time,
> ub3ratl4sf00 at gmail.com writes:
>
> > Manual says 10w-40, but the local auto parts stores only carry that in
> > gas
> > API equivilent, so I went with 5w-40 Synthetic Turbodiesel oil.
> >
> > Will this work for seating the rings?
> >
>
>   I wouldn't braeak-in with synthetic.  Too slipery so to speak and
typical
>
> claims are that the rings don't seat properly.
>     Loren
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> Vwdiesel at vwfans.com
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