# STC SE2593 CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Add unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index(RON + MON)/2, per ASTM Specification D-439. (SUPER SCARAB SERIES 185J R-550-1, -3)
- Status date: March 6, 1990
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-235](https://openairdocs.org/tcds/E-235)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5F2B6112BB6E3D8D85256CC2005A74E8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE2593%20CE

## ADs that name it (0)

None.

## Approved models (3)

- Olson George Company Super Scarab Series 185 ([TCDS E-235](https://openairdocs.org/tcds/E-235))
- Olson George Company Super Scarab Series 185J ([TCDS E-235](https://openairdocs.org/tcds/E-235))
- Olson George Company Super Scarab Series 185K ([TCDS E-235](https://openairdocs.org/tcds/E-235))

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