Originally Posted by oil_film_movies
Originally Posted by Silver
What the heck does this mean, and how is it accomplished? "Forms a self-healing layer that clings to metal surfaces..."
If this is true, I wonder if it would be good for a vehicle that sits for weeks as the oil slowly drains from places.
https://www.castrol.com/en_gb/unite...t-range/castrol-magnatec-stop-start.html
They are simply referring to polar molecules, which all motor oils have to some extent. Some more than others, and Magnatec may use more, I'm not really sure. Probably using polymer esters like that found in HyperLube ZRA additive or Ketjenlube ones, would be my guess. Whatever they use to do it, they only claim to beat the OM646LA engine test by 20%, so thats not a lot, and I'd expect about any full synthetic run on that test to do about as well
As I've said earlier in other threads, I had dinner with a Castrol chemist who worked locally on the magnatec engine programme in Oz (He was an amazing up close prestidigitator as well (It's one of those dinners that I got those cards).
With regard to Castrol's "UMA" (Unique Molecular Attractant) additive, he stated that their test engine programme went with a bookend of their reference oil (M1 5W50, I kid you not)
Reference Oil
Flushing Oil
Test Oil
Flushing Oil
Reference Oil
so that they could obviously see that the engine condition did not change through the process.
He stated that they were surprised that the effect of the UMA additive lasted through the flushing stage, and was evident in at least the early stages of the reference oil bookend...the layer left was tenacious.
I have the utmost respect for the Magnatec range, having spoken directly to a formulator in the programme.
Member bobbydavro has suggested that there's a more newer version in edge (Titan programme)