76 – Recommended Grades of Indian Oil

The following change has been made in recommended grades of Indian Oil.

1. For all temperatures above 60° F. use SAE-50
2. For all temperatures between 60° F. and 32° F. use SAE-30
3. For all temperatures between 32° F. and 0° F. use SAE-20W
4. For all temperatures below 0° F. use SAE-10-W

When breaking in new motors do not use heavier than SAE-30 oil regardless of temperature.

The above oil change should be made on all 338 motors at once.