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Oil temperature test report for a 1929 Chevrolet, comparing the standard system with a 'B.P.W.' installation.


Identifier  ExFiles\Box 135\3\  scan0092
Date  18th August 1929
  
18.

OIL TEMPERATURE TEST

CAR USED - Chevrolet 1929 - 6 cy. Coach No. 711902.
MILEAGE - 2,140.
OIL - Fresh Mobile "A".
AIR TEMPERATURE - 72 - 80.
DRIVING SPEED - 45. m.p.h.
DATE - 18 August 1929.

OIL TEMPERATURE WITH STANDARD CHEVROLET SYSTEM
MILE-AGE | TEMP TOP | TEMP MIDDLE | TEMP BOTTOM | OIL PRESS | TIME
5 | | | 133 | 13 | ':23
10 | | | 161 | 12 |
15 | | | 174 | 11 |
20 | | | 179 | 10 |
25 | | | 179 | 10 |
30 | | (188obs 190corr) | 181† | 10 |
35 | 192 | | 183* | 10 | 2.35
40 | | | 184 | 10 |

OIL TEMPERATURE WITH "B.P.W." INSTALLATION
MILE-AGE | TEMP TOP | TEMP MIDDLE | TEMP BOTTOM | OIL PRESS | TIME
5 | | | *3 156° | 12 | 4.07
10 | | | 171° | 11 |
15 | | | 176° | 11 |
20 | | | 179° | 10 |
25 | | | 180° | 10 |
30 | | 193° | 180† | 10 |
35 | 198° | | 181*5 | 10 | 4:28
40 | | | 182 | 10 |

*1 *2 Assumed Values
*4 *5

*3 Oil Warm Start Second Test

Observers R.C.Darnell
R.T.White.

SUMMARY
TEMP DIFFERENCE IN DEGREES
Top - 6°+ Bottom 2°+
Middle - 3°+ Oil Press O
  
  
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).


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