The U.S. aircraft register, updated daily
Fuels · Aviation gasoline · data as of November 2, 2026

UL100E unleaded avgas

A 100-octane unleaded aviation gasoline from LyondellBasell and VP Racing, tested under the FAA's programme for a drop-in replacement for 100LL. Not yet approved for sale or use.

The fuel

Class
Aviation gasoline
Specification
ASTM D910 (in evaluation)
Status
in test
—
aircraft on the register burn it
no engine series on the register is built for it
—
no airport on record sells it
by the FAA's file, the news and the sellers' sites

Connections how this fuel links to the rest of the register

Other aviation gasoline
More

The whole map of how records connect · these connections as data: /graph/fuel/ul100e.json.

Sources: FAA Civil Aviation Registry (November 2, 2026) for the engines and aircraft; the FAA airport master file for fuel sold; the FAA's supplemental type certificate listings for the approvals; SAFxCHANGE's record for the plants, deals and the airports named in the news; the sellers' own websites where named. Specifications as published by ASTM International and the U.S. military. The fuel makers' own pages say where their fuel is sold this month; this page is as current as those records.