No, you must use oils recommended by VW. Blends are verboten.
5W 30 Synthetic Blend
This truck takes synthetic 10w-40 oil i use castrol oil(synthetic blend)
You can use synthetic or synthetic blend if you want , it's not mandatory according to the 2004 Ford F-150 owners manual
Yes
You can use synthetic, synthetic blend, or conventional oil. It is your choice.
A 2004 Dodge Neon uses 5W30. It can be synthetic,, conventional, or a blend.
It is a combination of synthetic oil and conventional oil.
Yes, that is what a synthetic blend is that they sell.
You can use conventions, synthetic blend, or 100% synthetic, your choice.
Semi synthetic or synthetic blend is a combination of synthetic and conventional oil. Full synthetic oil is just that 100% synthetic oil.
Yes, you can also mix it with conventional oil creating a blend.
Yes, semi synthetic is a blend of synthetic and conventional oil already.