Article 1282 - Change in Lubricating Oil Specifications

TSB #85 - February 9, 1968
(1967-1968 242 and 363 CID Ford Dorset Diesel Engines)


Multi-viscosity lubricating oils meeting Ford Specification ESE-M2C101-B may now be used in the subject engines (single-viscosity oils only were formerly specified). Single viscosity oils may still be used, if they meet Specification ESE-M2C101-B rather than the Military Specification MIL-L-2104A (S-l) formerly specified. Use the temperature-viscosity chart given below for crankcase refill:

MULTI-VISCOSITY OILS

When Outside
Temperature Is
Consistently
Use SAE
Viscosity
Number
Below +32° F
-10° F. to +90° F
Above 0° F
Above +32° F.
5W-30
10W-30
10W-40
20W-40


SINGLE VISCOSITY OILS
When Outside
Temperature Is
Consistently
Use SAE
Viscosity
Number
-10° F to +10° F
+10° F to +32° F
+32° F to +90° F
Above +90° F.
10W
20-20W
30
40


Page 4-2 of your 1968 Ford Truck Maintenance and Lubrication Manual should be corrected to show the new specification. The next printing of the Truck Owner's Manuals will show the new specification, also.