Every time I see this discussion I have to wonder if I'm missing something? I've used dino
oil for all of my driving life and I've driven some fairly fast cars and driven them pretty hard. I've also owned a number of trucks for towing, hauling, etc... and never really babied them either.
Dino
oil has always served me just fine and all the hype I'm hearing about
synthetic oils just hasn't really swayed me from my own empirical evidence and that of my friends using dino oils for the 42 years I've been driving, working on cars, and changing my own
oil.
Now that
zinc is a consideration in some of my engines, I do search for it in the oils I buy or use an additive but that still hasn't convinced me that the new
synthetic oils are worth the additional cost. Hearing somebody say that their car runs "just a little bit better" with
synthetic oils doesn't strike me as empirical evidence.
I know you can run the synthetics longer in your engine without them breaking down, but I'm not sure I would like to have any oil in my engine for more than 4000 miles regardless and most of the dino oils these days are so good you can go that long with them.
So, when it comes to synthetics, how much is hype and how much can be proven to be worth the additional cost- besides "helping you sleep better at night"? I sleep just fine, thank you....
I'll go get some popcorn now.....
Bob