# STC SE6074NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Castrol North America, United States
- Description: Installation and usage of Castrol AD 65 SAE grade oil conforming to AN 161, AN 162, AN 163, and AN 164 per MIL-L-2281 qualification.
- Status date: October 26, 1993
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E8CE](https://openairdocs.org/tcds/E8CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/225F68787346E7D385256CC2005A75D3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE6074NM

## ADs that name it (0)

None.

## Approved models (1)

- Teledyne Continental Motors TSIO-520-EB ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))

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