"CRUSADER
250," "250
CLIPPER"
AND
"CRUSADER
SPORTS"
GEARBOX
---FILLER
PLUG
Fig.
2.-Exploded
View
of
Felt
Oil
Cleaner.
9 Felt
Oil
Filter. The construction
of
this is
cl~arly
shown
in
Fig.
2.
The
felt
filter element should be
cleaned by washing in petrol every
2,000
miles and in
addition the element should
be
renewed every
5,000
miles.
10
Moiti-grade Oils. Sorne
of
the manufacturers
of
the
lubricants in the table above offer special engine lubricants,
the viscosity
of
which
is
Jess
sensitive
than
usual to tem-
perature changes. These are classed as S.A.E.
IOW
/30
or
IOW
/40
oils. Their use will facilitate starting
at
low
temperatures
but
may result in an increase in the rate
of
oil consumption. These oils are ail
of
a highly detergent
nature
and
the precautions given in paragraph
11
should be
followed
if
a change to them is made after a long period
of
use
on
a non-detergent oil.
Castrolite
and
Esso Extra Motor
Oil
are
of
a mild
multigrade character (S.A.E.
20W/30)
and
have only
11