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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of the viscosity of various oils at low temperatures.

Identifier  ExFiles\Box 27\1\  Scan170
Date  19th April 1929 guessed
  
-4-

COMPARISON OF VISCOSITY OF VARIOUS
OILS AT LOW TEMPERATURES.

TEMPERATURES. REMARKS.

At 13°F (Castrol R.{Sir Henry Royce} ) Still quite mobile.
) A good oil for this purpose.

(Motorine C. 35 )
(Mobiloil A.{Mr Adams} " ) Too thin for universal
(Mobiloil BB. " ) use at warmer temps.
At 19°F {Castor P3. 36 )
{Castor P2. 40 ) Not recommendable -
{Mineral P4. 42 ) (distribution etc.)
(Bijur M.H. 125 ) Too thick for use in
(Luvax heavy 220 ) cold weather.

(Mobiloil A.{Mr Adams} 20 ) See above.
At 27°F {Adcol N.P. 22 ) Too thin for universal use
(Motorine A.{Mr Adams} ) Congeals.

(Castor P3. 20 ) See above.
At 28.5°F {Mobiloil A.{Mr Adams} 17 ) " "
{Adcol N.P. 18 ) " "

At 32°F (Prices Amber A.{Mr Adams} ) Congeals.

The figures denote the time in seconds taken
for equal quantities to pour.

---------

Hs{Lord Ernest Hives - Chair}/F.Gaye.
  
  


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