Bentley R Type - Chapter II: Periodic Lubrication and Attention; Engine; Gearbox

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27
CHAPTER
II
Periodic
Lubrication
and
Attention
LUBRICANTS
RECOMMENDED
.Eng
i
ne,
For
normal
operation
of the car under
Temperate
climatic
con-
ditions,
Bentley
Motors
(tgfr) Ltd.
recommend
a
first quality
oil oJ
viscosity
S.A.E. zo
tor
the
engine
for
all-the-year-round
use, but,
if,
conditions
permit of long
journeys
of
maintained
high speeds,
a heavier
duty
oil of
S.A.E.
3o
grade
would
provide better
oil
mileages._
Also, it
would
be
advantageous
to use
an S.A.E.
3o
grade oil
when
the
car
is
normally
operated under Tropical
climatic
conditions.
On
the
other hand,
under extreme
Winter
conditions
of sub-zero
temperatures,
the use
of
a
lighter
grade oil
of
S.A.E.
ro viscosity
would
provide
easier
starting
and satisfactory
lubrication.
The
following oils
are recommended:-
Shell
X.roo-eo
X.roo-3o
Vacuum
Mobiloil Arctic Mobiloil
A.
Equivalent
oils to
the above
are also
marketed by:-Sternol
Ltd.,
Alexander
Duckham &
Co. Ltd.,
Esso Petroleum
Co.
Ltd.,
Gulf Oil
(Great Britain)
Ltd.,
and Dalton & Co.
Ltd.
In
the
instructions
which
follow,
reference
is made
to
oil
"A"
or
"8"
as
above,
i.e. viscosity
zo
or
30.
Gearbox.
The
automatic
gearbox should be
filled and topped
up
only
with
Automatic Transmission
Fluid,
Typ"
"
A",
having an Armour
qualifi-
cation
ttumber
prefixed by AQ/ATF.
Either
of the following
may be used:-
..Att
S.A.E.
zo
B.P.
Energol zo
Wakefield's
Castrolite
..Btt
S.A.tr.
3o
Energol
3o
X.L.
Typ"
AQlATF-ror
Type
AQlATF-ro3
Typ"
A9lATF-z6t
Type A8lATF-r56
Vacuum
Shell
B.P.
Wakefield's
...
General
Motors
Mobiloil Fluid zoo
Donax T.6
Energol Automatic
Transmission
Fluid.
Castrol TQ.
Hydra-Matic Fluid