Transmission Lubricant
Capacities
The capacity listed on the transmission
label plate is the amount needed to fill the
transmission only and does not include the
additional amount needed for hosing. The
capacities listed here reflect the
approximate total amount required to
maintain transmission lubrication in the
operating range. Always use the
transmission check hole as a final
reference.
Transmissions equipped with a dedicated
cooler or Power Take-off (PTO) have larger
capacities that those listed.
TX-18 Lubricant Capacity
Pints (US) Liters
25.4 (≈ 3.2 gal) 12
Transmission Lube
Specification
CAUTION
Only use lubricants approved for this
transmission. Failure
to use an ap-
proved lubricant can break down both
lubrication and transmission compo-
nents, resulting in degraded perform-
ance and equipment damage, and
may affect warranty coverage
CAUTION
DO NOT use additives or friction modi-
fiers. Neither
are approved for this
transmission. Using an additive or fric-
tion modifier can break down both lu-
brication and transmission compo-
nents, resulting in degraded perform-
ance and equipment damage, and
may affect warranty coverage.
PACCAR approves use of PACCAR
Genuine PS-386 (Eaton approved)
synthetic transmission fluid to ensure
the highest performing lubricants for
maximum performance. All other approved
rebranders for this lubricant are also
acceptable.
SPECIFICATIONS - Transmission Lubricant Capacities
62 Y53-1349-1A1 (02/2022)
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