• PiperForum.com is a vibrant community of Piper owners and pilots. Our over 1,500+ active members use Piper Forum to swap technical knowledge, plan meetups and sell planes/parts. We host technical knowledge of general aviation topics and specific topics on J3-Cubs, Cherokees, Comanches, Pacers and more. In addition to an instant community of pilots for you, PiperForum.com is a library of technical topics, airplane builds, images, technical manuals, technical documents and more.

    Access to PiperForum.com is subscription based. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched library of Piper knowledge.

    Click Here to Become a Subscribing Member and Access PiperForum.com in Full!

Mogas STC

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Greg S

Well-Known Member
Jan 6, 2011
Reaction score
My '72 140 came with the mogas STC. I haven't used mogas in it yet but have been thinking about giving it a try. Previous owner said he mixed it 50/50 with 100LL for awhile, but got tired of the hassle and just used avgas. I know the big problem is ethanol, but assuming I have a source of non-corn juice gas (and also check it to be sure), what have been others experience with using it? Any issues, etc. Have you noticed and difference in gph vs avgas? Saving $1+ per gallon is starting to look pretty tempting about now.

Latest posts