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I use VR1 for the zinc, and it's a good price point - also don't track the car and it never really looks like it needs to be changed. Valvoline has a comparison of Dino vs synthetic on Youtube running to engines for 500K miles. From a wear perspective, seemed about the same, but the Dino had more varnishing of components. Makes me consider. With the frequency that I change, about 3500 miles on average, do not think there really is a huge difference between the two. I will concede the older seals and gaskets and synthetics give me pause, but for practicality, not sure I will see any difference.
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Chris
1988 911 Carrera Targa (driving project started JAN 2022)
1970 911E - Long since gone
1972 911 Targa - gone
1987 911 Carrera - gone
Retired FA-18C Driver
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