49 CFR § 396.5
Lubrication
November 18, 2020
Every motor carrier shall ensure that each motor vehicle subject to its control is—
(a) Properly lubricated; and
(b) Free of oil and grease leaks.
Every motor carrier shall ensure that each motor vehicle subject to its control is—
(a) Properly lubricated; and
(b) Free of oil and grease leaks.