I use BRADD PENN oil in my B1 its 10w30 and has all the zinc in it that they(government)took out of reg oils. i get it here in dayton,ohio from a bulk oil company--i buy it by the case for like 4.80 a quart.
1970 DART B1MC N/A
8.86@ [Email]155
3200 lb on 275 DR
5.30 @ 130 1/8