slant 6 oil weight
A conventional straight 30 will probably hold up a little better under shear and other properties. This was probably one of the reasons straight weights were used for long periods of hard running.
This is from Widman's oil overview. You can see how close a typical 30 and a typical 10w-30 are.
The 'zone of protection' is his description of the target operating viscosity for the air cooled Corvair flat six. Based on the oil grades recommended by Chrysler, its likely the acceptable viscosity range for our sixes and eights, was a little wider. Maybe as high as 18 or 20 cStoke.
yep. Once the oil is up over 180* F there's only a little difference between 0w-30, 10w-30, straight 30 viscosity.
A conventional straight 30 will probably hold up a little better under shear and other properties. This was probably one of the reasons straight weights were used for long periods of hard running.
This is from Widman's oil overview. You can see how close a typical 30 and a typical 10w-30 are.
The 'zone of protection' is his description of the target operating viscosity for the air cooled Corvair flat six. Based on the oil grades recommended by Chrysler, its likely the acceptable viscosity range for our sixes and eights, was a little wider. Maybe as high as 18 or 20 cStoke.
