Originally Posted by highlandchef
With modern oils it probably doesn't matter but I still don't mix them if I can help it.
Your opinion on oil change frequency is valid (although I don't agree) and you are correct, it's the additives in dino oil that break down first. Howerver, your technical info comparing synthetic and dino oil is completely wrong. The difference in between synthetic is NOT the additive package. Although basically designed for the same purpose, true synthetics and dino oil are very different products.
I musta missed something cause i didnt see anythin about dino oils..I was just talkin about mineral/synthec