The importance of efficient lubrication cannot be over-estimated. The use of cheap oils is false economy and we strongly recommend the employment of those oils which we have found from our own experience to be the most suitable for our machines.

The identifying letters used by most oil firms denoting the different grades in which that oil is supplied are imitated so that it is essential when ordering oil to specify the brand as well as the grade. As any additional precaution it is advisable to buy from branded cabinets or from sealed packages. See where your oil is drawn from, and note that it is clean and is measured in a clean container.

It is specially recommended that towards the end of September 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 following high-grade lubricants are recommended :—

ENGINE LUBRICATION (SUMMER).

• Triple Shell (Shell Mex & B.P. Ltd.)
• Essolube " 50 " (Anglo-American Oil Co., Ltd.)
• Price's Motorine " C " (Price's Lubricants Ltd.)
• Vacuum Mobiloil " B.B." (Vacuum Oil Co., Ltd.)
• Patent Castrol " XXL " (C. C. Wakefield & Co., Ltd.)

*ENGINE LUBRICATION (WINTER).

• Patent Castrol " XL " (C. C. Wakefield & Co., Ltd.)
• Double Shell (Shell Mex & B.P. Ltd.)
• Essolube " 40 " (Anglo-American Oil Co., Ltd.)
• Price's Motorine " D " (Price's Lubricants Ltd.)
• Vacuum Mobiloil " A " (Vacuum Oil Co., Ltd.)

GEAR BOX LUBRICATION.

Use Summer Grade Engine Oil throughout.

HUB LUBRICATION.

• Price's Belmoline " C " (Price's Lubricants Ltd.)
• Mobilgrease No. 4 (Vacuum Oil Co., Ltd.)
• Castrolease Heavy (C. C. Wakefield & Co. Ltd.)
• Shell Retinax (Shell Mex & B.P. Ltd.)
• Esso Grease (Anglo-American Oil Co., Ltd.)

FOR GREASE NIPPLES.

• Esso Grease (Anglo-American Oil Co., Ltd.)
• Price's Belmoline " C " (Price's Lubricants Ltd.)
• Mobilgrease No. 2 (Vacuum Oil Co., Ltd.)
• Castrolease Medium (C. C. Wakefield & Co., Ltd.)
• Shell Retinax (Shell Mex & B.P. Ltd.)

FOR REAR CHAINS.

• Shell Retinax (Shell Mex & B.P. Ltd.)
• Esso Grease (Anglo-American Oil Co., Ltd.)
• Price's Rangraphine (Price's Lubricants Ltd.)
• Mobilgrease " No. 2" (Vacuum Oil Co., Ltd.)
• Castrolease " G " (C. C. Wakefield & Co., Ltd.)