The importance of efficient lubrication cannot be over-estimated. The use of cheap oils is false economy, and we only recommend the employment of those oils and greases which we have found from our own experience to be the most suitable for the machine.
Do not use additives in the oil or fuel - they are unnecessary.
It is specially recommended that towards the end of September in Great Britain the oil tank should be drained and should be refilled with one of the grades recommended for Winter use, the use of such a grade being continued throughout the Winter months. At the beginning of May the tank should again be drained out and one of the grades recommended for Summer lubrication employed.
The oil should not at any time be kept in use for longer than 2,000 miles running. All old oil should be discarded after this distance has been run and the tank refilled with fresh oil. Instructions for changing the oil and cleaning the filters, etc., appear on other pages.
The identifying letters used by most oil firms denoting the different grades under which their oils are supplied are often imitated, and it is essential when ordering oil to specify the Brand as well as the Grade. As an additional precaution see that the oil is taken from branded cabinets or from sealed packages. See also that if oil is bought loose it is brought in a clean container.
The following high-grade lubricants are recommended :—
ENGINE LUBRICATION - SUMMER
Ambient Temperatures above 60°F. (Viscosity S.A.E.50).
| Shell "X100" S.A.E.50 | Castrol XXL |
| Essolube "50" | Duckham's NOL Fifty |
| B.P. Energol S.A.E.50 | |
| Mobiloil B.B. |
ENGINE LUBRICATION - WINTER
Ambient Temperatures below 60°F. (Viscosity S.A.E. 30.)
| Duckham's NOL Thirty | B.P. Energol S.A.E.30. |
| Castrol XL | Essolube " 30 " |
| Mobiloil A | Shell " X100 " S.A.E.30. |
GEARBOX LUBRICATION —SUMMER AND WINTER.
(Viscosity S.A.E.50).
Use Summer Grade Oil.
HUB LUBRICATION.
| B.P. Energrease C3 | Shell Retinax "A" |
| Mobil Hub Grease | Esso Grease. |
| Castrolease Heavy | Duckham's H.B.B. Grease |
GREASE NIPPLES
| Shell Retinax "A" | B.P. Energrease C3 |
| Esso Grease | Mobilgrease No. 2 |
| Duckham's H.P.G. Grease | Castrolease Medium |
REAR CHAIN LUBRICATION.
| Duckham's Laminoid | B.P. Energrease C3G |
| Castrolease G | Esso Grease |
| Mobilgrease No. 2 | Shell Retinax "A" |
TELESCOPIC FORKS - ALL SEASONS
(Viscosity S.A.E.20).
| Duckham's NOL Twenty | Castrolite |
| Mobiloil Arctic | B.P. Energol S.A.E.20 |
| Essolube 20 | Shell X100 20 /20W |
IN THE OIL CAN - ALL SEASONS
(Viscosity SAE.10).
| Wakefield's Oilit | B.P. Energol 10 |
| Mobil Handy Oil | Shell Donax Al |
| Duckham's NOL Ten | Essolube " 10 " |