Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:99:p7
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 99 (pt 7/39)
Character Range: 1172899–1175632

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Annex 13 ‑ Appendix 7 Drain and weigh procedure

              1. The engine shall be filled with new oil. If a constant volume oil sump system (as described in ASTM standard D7156-09) is used, the oil pump shall be turned on while filling the engine. Enough oil charge shall be added to fill up both the engine and external sump.

              2. The engine shall be started and operated over the desired test cycle (see paragraphs 2.2.15. and 2.4.4.8.3.1.) for a minimum of 1 hour.

              3. Once the cycle is complete, oil temperature shall be allowed to stabilize at a steady state engine condition before shutting the engine down.

              4. A clean, empty oil drain pan shall be weighed.

              5. Any clean supplies that are to be used during the oil drain (e.g. rags) shall be weighed.

              6. The oil shall be drained for 10 minutes with the external oil pump (if equipped) powered on followed by an additional ten minutes with the pump powered off. If a constant volume sump system is not used, the oil