Originally Posted By: CELICA_XX
Besides price... are there ANY downsides to using synthetic oil ?
The price difference is a non-issue to me... I just want the best product for my vehicles, and I'm sure many people feel the same way.
I would especially like to hear from our members who swear by dino oil. If dino and synthetic were the same price, would you still choose dino?
Synthetic is better, no question. Molecules are closer in size that causes it to be more "slippery," more additives, more tolerant to extreme conditions, keeps your engine cleaner, won't sludge as easily, etc. If synthetic and dino were the same price, I would choose synthetic. If synthetic was more expensive, I would choose synthetic. The point is that dino is a great oil too so these days it doesn't really matter which one you use, but you can't argue it's better.