California Judge to Hear Arguments on Replacing Leaded Aviation Fuel with Unleaded G100UL

December 13, 2024

Below are the opening paragraphs of a 12/08/2024 AVweb article by Russ Niles, Environmental Group Asks Court to Enforce Unleaded Avgas Consent Agreement.

A California Superior Court judge will hear arguments Jan. 28 that could result in 100LL becoming unavailable in California and replaced by GAMI's G100UL unleaded avgas. The court will also be asked to require the four major fuel distributors serving California airports to carry G100UL.

The Center for Environmental Health says it's bringing the action because the distributors have not accepted the fuel in contravention to a consent agreement they and 26 FBOs signed to settle a lawsuit with CEH in 2014. Nine of the FBOs have since gone out of business or been bought out. Under that agreement, the defendants agreed to distribute and sell any new fuel that used less lead than 100LL when it became commercially available.

In this latest action, the environmental group says G100UL meets all the requirements for the lower lead fuel described in the consent agreement in that it's approved (via STC) for use in "nearly all" aircraft and has a specification determined by the FAA to be as safe as 100LL for distribution and use.

To read the article in full click here.


To access two of the legal documents filed on 12/04/2024 by the Center for Environmental Health on the Motion to Enforce and Modify Consent Judgement click here. A second motion filed concurrently is available here.

© Oregon Aviation Watch Contact Us Jump to Top