I have dealt with the ASTM specs for avgas and gasoline, gasoline is actually regulated to a stricter standard than Avgas because so many local emission rules apply to cars and not airplanes. I build a fuel valve for an antique airplane so I did lots of research on the topic. Tim

Last edited by astjp2; 02/25/19 05:38 AM.
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!