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Cummins N14 – Lubricating Oil Dipstick – Calibration

While the engine is installed in chassis, install the dipstick in the dipstick tube housing.
Use clean 15W-40 oil to fill the oil pan to the specified ‘‘LOW’’ oil pan capacity level.

Remove the dipstick and scribe a mark across the dipstick. Mark the ‘‘LOW’’ level with an ‘‘L.’’
NOTE: The dipstick will break if the scribe mark is too deep.
NOTE: Cut the new dipstick off approximately 38 mm [1.5 inches] below the ‘‘LOW’’ oil level mark.

Install the dipstick into the dipstick tube housing.
Use clean 15W-40 oil to fill the oil pan to the specified ‘‘HIGH’’ oil pan capacity level.
Refer to the preceding oil pan capacity table for the oil required.

Remove the dipstick and scribe a mark across the dipstick.
Mark the ‘‘HIGH’’ oil level with an ‘‘H.’’
NOTE: The dipstick will break if the scribe mark is too deep.