Thanks. Both responses regarding Magnatec and Edge sound similar, taking advantage of some polarity. Who knows, maybe in the end it's just like Pennzoil Platinum vs. Ultra, one being cheaper than the other. The additive packages certainly look a lot like Platinum and first gen Ultra which had huge amount of boron.
Originally Posted By: Pajero
I e-mailed Castrol concerning Magnatec. Below is the response:
"Thank you for contacting Castrol North America.
Castrol GTX MAGNATEC performs in the same way that Castrol GTX Start Up performed years ago. It provides excellent anti-wear protection through the incorporation of a second anti-wear component that is a polarized (or polar) molecule. This molecule clings to engine surfaces at start up offering protecting at lower temperatures before conventional anti-wear additives become active at higher temperature.
These molecules work with conventional additives to provide wear protection over the full range of engine operating temperatures from the moment you turn the key.
Castrol GTX Magnatec does have a molybdenum containing component.
Castrol Consumer Relations"
Respectfully,
Pajero!
Originally Posted By: Quattro Pete
This whole "clinging molecules" is silly marketing to me. I mean, which oil does not cling to metal? Do all other oils (apart from Castrol's) just leave metal surfaces completely dry?
But as far as Edge and ester, here is what I posted earlier, based on info obtained from a chat with a Castrol employee some time back...
https://bobistheoilguy.com/forums/ubbthr...tro#Post4373605