I'm sandwiched between hitting the 650-700 mile point on running-in oil on a totally-rebuilt `71 750 engine ... and getting sliced & diced by the medicos where I will not in the mood to kick-start anything for 3-4 weeks.
I ( think I ) want to swtich over to full synthetic 20/50 this weekend before the white coats get me... but can only find Castrol V-Twin locally: Castrol RS V-Twin 20W-50 (min Zn = 0.12 = 1200 ppm)
Any reason this isn't good enough for the switch-over while I prowl around for the Amsoil hot lick next oil change?
I ( think I ) want to swtich over to full synthetic 20/50 this weekend before the white coats get me... but can only find Castrol V-Twin locally: Castrol RS V-Twin 20W-50 (min Zn = 0.12 = 1200 ppm)
Any reason this isn't good enough for the switch-over while I prowl around for the Amsoil hot lick next oil change?