Of all of my cars, the E430 has synthetic all of its life, it was M1 0W40 the first 8 years and xW20 the last 4 years, the last oil change with 5 qt M1 0W20 with 2 qt M1 0W40 with 6 oz VSOT.
The other cars had syn and dino depends which oil I had on hand.
You can use either PYB or any syn, as long as don't go so long with PYB, 6-7k miles OCI is probably the limit.
The other cars had syn and dino depends which oil I had on hand.
You can use either PYB or any syn, as long as don't go so long with PYB, 6-7k miles OCI is probably the limit.