B bigt61 Joined Feb 12, 2013 Messages 3,117 Location Virginia Apr 22, 2013 #41 What's wrong with M1 15W-50? That will work in any muscle car IMO, and still crank easy in the winter. OverKill is right, 175lb open spring pressure is nothing. 5W-30 would probably not hurt it. Oil has improved a lot in the last 25 years.
What's wrong with M1 15W-50? That will work in any muscle car IMO, and still crank easy in the winter. OverKill is right, 175lb open spring pressure is nothing. 5W-30 would probably not hurt it. Oil has improved a lot in the last 25 years.