Originally Posted By: PhilsZ
Originally Posted By: Cooper
Just curious, why 4k miles on Ultra?
well, he went almost year on that last oil. And...the fewer miles the better. Imho
Time in sump really has very little impact on the oil itself.
I understand changing based on warranty constraints and due to these warranty constraints i would have used a cheaper oil instead,since the oil is getting analyzed anyways I'd rather see how far I can push a lesser oil just in case I'm not in a position to acquire a top shelf syn.
We all know that ultra will do a 3750 mile interval and still be clean on the dipstick,so paying for someone to tell me the oils still good when the product is of known quality and the oil being still serviceable is to be expected.
Once warranty expires I've got no doubt ultra will easily run out a 7500 mile interval