Originally Posted By madscientist

If you want leaded, you have to call Torco and ask for it. They don't show it on the web site but they have it. Also, at least one of the private label brands had a leaded version. They were back east IIRC. It may be less shipping if you live back east to use a private label brand.

Question for anyone who can provide input: What's harder on O2 sensors, MMT deposits build-up or lead from a 50/50 blend of pump 93 E10 fuel and 110 leaded race fuel?