Hi, 80/87 was red (leaded) 100/130 was green (leaded) and now 100 Low Lead is blue When I was a flying instructor in 1978, I would treat my car to an occasional tank of 100/130. It made quite a difference. The 80/87 was similar to pump gas at the time. We even had drag racers coming to the airport and buying jerry cans of 100/130 for the days race. Now, it is very difficult to buy avgas from the airports. Too bad. Regards, K. Kevin R. Merkley Thunder Bay, Ontario 64 Dodge 440 2dr HT (Cdn) 64 Dodge Polara 500 Convertible (Cdn) ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.