Engine Oil Discussion

In cold weather. Synthetic is almost a must today. That's where I notice. Engine cranks faster in very cold start. All warmed up I believe most of today's blends work fine.

Racing I use VR1 10w-30. I get it at a price that is significantly less than synthetic. In a race engine you change oil so frequently because of increased blow by. And with a flat tappet mechanical lifter? A zinc formulated and/or zinc additive is a must.

Just my experience.