REFLECTOR: Engine Oil: Survey

[Scott Baker]

AeroShell 100-Plus, year round in Florida. Lycoming IO-360.
Scott B.

On 6/12/2012 5:52 PM, Mark Magee wrote:
> All,
> The discussions on heat, oil and water spurred me to start this thread 
> and ask if anyone is running anything other than Aeroshell, 
> particularly in a LYC/CONT?
> For brevity I'll pose these questions:
> 1) Lycoming, Contenental, Auto (specify):
> 2) Aeroshell Only
> 2A) If additives what additive and ratio:
> 3) Other Oil: Specify
> 3A) If additives with Other Oil what Additive:
> 4) Oil Analysis performed?
> 4A) Results of Oil Analysis (general terms: how many hours deemed OK 
> before dropping oil):
> Please include comments.
>
> We all know the certified engine mfgs will only approve Aeroshell and 
> P-66 for they have the STC. From my study the only difference in 
> certified GA engines and automotive engines is the lead in the fuel, 
> and that Shell claims they neutralize the effects of the lead in the 
> oil and that auto oil mfgs do not have to deal with lead anymore. I 
> know folks are running Castrol Synthetic, Royal Purple, Redline, Mobil 
> One, Amsoil and other synthetics in certificated engines. I can't see 
> a negative to this, someone please tell me specifically how I am 
> wrong. If touting Aeroshell then please be as chemically specific as 
> possible and cite data (links).
> I am ready to change to an automotive synthetic racing oil. This would 
> provide quite a layer of protection should I (we) run hot on a 
> climbout. The synthetics don't really start to get into breakdown 
> until approaching 400F.
>
> Let's see what the cat drags home!
>
> Mark Magee
> N34XL XLFG 300HP
> Brady TX
>
> 'Texan by Birth, Canardian by Choice.'
>
>
>
>
>
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