Originally Posted By: azsynthetic
* For what use do you think the GM EOS is intended? Is it a general use additive or for break-in only?
Does it matter? You add it to the oil that already has API/ILSAC/etc. approval, why? Because all of those OEM oils do not have what it takes to protect the engine during breakin and severe duty situations.
[/quote] You seem to imply that the GM EOS is supposed to be used at every oil change, but I don't think that's how GM intends you use it.
If this is intended as a supplement for API/ILSAC oils, what about ACEA oils? What about oils that are both API and ACEA approved, does the one spec negate the other?
And what in the world is going on with GM engines that they want people to put in 3 cows worth of calcium during break-in? Did they forget to clean the engine at the factory?
* For what use do you think the GM EOS is intended? Is it a general use additive or for break-in only?
Does it matter? You add it to the oil that already has API/ILSAC/etc. approval, why? Because all of those OEM oils do not have what it takes to protect the engine during breakin and severe duty situations.
[/quote] You seem to imply that the GM EOS is supposed to be used at every oil change, but I don't think that's how GM intends you use it.
If this is intended as a supplement for API/ILSAC oils, what about ACEA oils? What about oils that are both API and ACEA approved, does the one spec negate the other?
And what in the world is going on with GM engines that they want people to put in 3 cows worth of calcium during break-in? Did they forget to clean the engine at the factory?