[Vwdiesel] Rabbit droppings # 37 ( Kerosene lube oil mix test ).

[Val Christian]

Hagar,

The AD oil is differentiated from straight weight aviation mineral oil
by the presence of a dispersant (detergent & wetting agent) which holds
certain sludge and varnish products in suspension.  Additionally,
the ashless agent reduces the formation of ash within the cylinder
region.  The oil tends to have lower ring deposition characteristics.
There are also anti-foaming additives which may be somewhat incompatable
with aviation multi-vis products.

Straight mineral oil is normally used during breakin, as the AD additives
tend to suspend particulates better, reducing ring seating, etc.

If you were closer, I'd take your AD oil, and find something else that would
make you happy.

Val



>
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> This is part of fuel experiments ---that has been ongoing here for many yea=
> rs. Testing  Canola (rapeseed oil) oil and you name it.      The kerosene w=
> as sitting in the shed not being used , also a lot of Aviation lube.   AD-8=
> 0  AD-100  and so on. 1982 Rabbit 1.6L NA      with    300 000 Km on clock.=
>  has been running on that mix, for a couple of weeks. (lots of AD- 80 in mi=
> x)       MYSTERY ?    why does it run so much better now  ? Than it did on =
> Diesel fuel.       Loren mentioned long ago that adding 2 cycle oil to dies=
> elfuel --improved combustion and it had other effects.      I asked the ref=
> iners if "Ashless" ment adding a chemical , they said NO.   "Dispersant" ??=
> ?? does anyone know what that is ?.    Rabbit diesels are known for top rin=
> g coking   . ---- is it possible that this lube frees top ring ? or at leas=
> t seal it for better compression ??.     The better running is startling  t=
> o say the least.     Maybe 2 cycle oil and AD-80 has a high cetane number. =
>     while I wait for some answers ---maybe  a joyride will take place. It d=
> rives like a sports car now.      Hagar
> --
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