Switch to Full Synthetic Oil

I`ve always heard that the old school seals would`nt hold up, and leak. But I`ve recently tried it, and seem`s to be holding up so far. I`ve also felt a slight increase in power. I`m a valvoline man personally. Mobil 1 is also a good product. They`re all probabley good these days. I change my oil every 3000 miles anyhow and shy`d from the expense of synthetics, but decided to splurge. ha