Today's Message Index:
----------------------
1. 10:52 AM - Oil choice (Dan Masys)
2. 11:05 AM - Re: Oil choice (Pascal)
3. 01:52 PM - Re: Oil choice (Kelly McMullen)
Message 1
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So after decades of blissfully thinking I was doing the right thing for my
aircraft engines by feeding them Aeroshell 15W50, it now is being called
evil stuff by knowledgeable folks like Mike Busch. Is there general
consensus that Phillips 15W50 is better as a multiviscosity oil for our
IO-540's?
And if using that does it have to be supplemented by Camguard to add back
the Lycoming 'snake oil' additive to protect the parts that are only splash
lubricated?
Not trying to set off oilfield flame wars but have the feeling that somehow
I missed something...
-Dan Masys
N104LD 620 hrs TTSN
Message 2
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15w-50 is for radial, get the XC 20w-50. I used it for well over 100 hours-
straight, than I used it adding camguard, now I use Aeroshell with camguard.
Ask yourself, where are you located (if 100 miles from ocean and in warmer
climates, like myself in So California, I could use the Aerosheel w100 year
round, I'll switch to phillips for the winter anyway, in case I go up to the
mountains 20 minutes away.
If you fly often, and/or not near ocean or corrosion prone areas, skip the
camguard. basically everything Mike comments on on his webinar.
Pascal
-----Original Message-----
From: Dan Masys
Sent: Friday, August 30, 2013 10:51 AM
Subject: RV10-List: Oil choice
So after decades of blissfully thinking I was doing the right thing for my
aircraft engines by feeding them Aeroshell 15W50, it now is being called
evil stuff by knowledgeable folks like Mike Busch. Is there general
consensus that Phillips 15W50 is better as a multiviscosity oil for our
IO-540's?
And if using that does it have to be supplemented by Camguard to add back
the Lycoming 'snake oil' additive to protect the parts that are only splash
lubricated?
Not trying to set off oilfield flame wars but have the feeling that somehow
I missed something...
-Dan Masys
N104LD 620 hrs TTSN
Message 3
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The problem with AS 15-50 is that it is 50% synthetic oil which does not
keep solids suspended.
It does contain the Lycoming addidtive.
You do NOT need the Lycoming additive. It is for the "76" series engines
like the O-320-H2AD that had very different cam and lifters than what your
IO-540 has. The Lycoming additive is a version of tricresyl Phospate, or
TCP, and is an extreme pressure lubricant. Later replaced by close cousin
TPP.
Phillips does not have that additive, and I don't think Camguard does
either. Camguard is primarily an anti-corrosive, which is helpful in
preventing pitting on the cam.
The Phillips/Camguard combo gives best anti-corrosion protection. The
Phillips is all mineral based, no synthetics.
On Fri, Aug 30, 2013 at 10:51 AM, Dan Masys <dmasys@u.washington.edu> wrote:
>
> So after decades of blissfully thinking I was doing the right thing for my
> aircraft engines by feeding them Aeroshell 15W50, it now is being called
> evil stuff by knowledgeable folks like Mike Busch. Is there general
> consensus that Phillips 15W50 is better as a multiviscosity oil for our
> IO-540's?
>
> And if using that does it have to be supplemented by Camguard to add back
> the Lycoming 'snake oil' additive to protect the parts that are only splash
> lubricated?
>
> Not trying to set off oilfield flame wars but have the feeling that somehow
> I missed something...
>
> -Dan Masys
> N104LD 620 hrs TTSN
>
>
--
- sent from the microchip implanted in my forearm
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