What it approves
Add approved fuel: Unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index(RON+MON0/2, per ASTM Spec D-439.
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
No AD in this release names this STC
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| Franklin Engine Company | 4AC-176 Series (Military 0-175-1) | E-221 |