ENGINE MAINTENANCE - Engine Lubricating Oil Recommendations and Specifications life due to factors such as corrosion, deposits, and wear. oil specifications and biodiesel or biodiesel blended fuel is not used as fuel for the engine. Use of 0W-40 and 0W-30 synthetic oils that meet API CK-4 or CJ-4 certification can be used in operations where the ambient temperature never exceeds 32°F (0°C). 0W-40 and 0W-30 oils do not offer the same level of protection against fuel dilution as do higher multigrade oils. Higher cylinder wear can be experienced when using 0W-40 or 0W-30 oils in highload situations.
Using a multigrade oil helps improve engine cranking in low-temperature conditions, reduces deposit formation and increases engine durability. The use of a fuel economy oil such as an API FA-4 oil is not approved for this engine. NOTE See Engine Lubrication and Filter Intervals to determine which oil drain interval to use for an application. If the type/oil capacity of each lubricat- ing oil pan is not known: 2 Contact a PACCAR® Authorized Repair Location Determine the capacity of the oil pan option for the engine being serviced by using QuickServe™ Online and the engine serial num- ber. Fill the lubricating oil pan to the smallest oil pan capacity listed for the engine being serviced.
Then add 1 US qt (0.95 liters) of oil at a time until it reaches the high mark on the dipstick. Record the num- ber of quarts/liters added, so the capacity is known the next time the oil is drained. NOTE It is the operator’s responsibility to fol- low these recommendations to ensure that the engine warranty is not affect- ed. The primary PACCAR recommendation is for the use of SAE 10W-30 API CK-4 or CJ-4 multigrade lubricating oil for normal operation at ambient temperatures above 5°F (-15°C). For ambient temperatures below 5°F (-15°C) SAE 5W-30 may be used, provided it meets API CK-4 or CJ-4 Y53-1185-1E1 (04/16/18) 43