With Shell's takeover of PZ/QS I thought it might be interesting to look at their conventional and synthetic products. Unfortunately their data sheets aren't very complete. For 5W30 Formula Shell: Flash 216C, Pour -41C Synthetic Shell Flash 225, Pour -36 Those look like good pour points for the dino. Shell, but I've never seen an oil that offered a significantly lower pour point for the conventional than a synthetic product. Is the same product as the Equilon Havoline lubricants? Shell doesn't get much air play for a company of that size. Maybe that's why they bought PZ/QS.