So far I only found two values, both from Marsh's Handbook of lipid bilayers>

0.963 mL/g at 20C,

0.960 mL/g at 30C

They are from two different references and that is why they are not consistent. I couldn't find papers on this, I guess it's difficult to measure.

I'd love to find a consistent set of measurements. Does anyone know where I could find data on Dilauroyl PC partial specific volume? thanks