Originally Posted by RS-wagon
I have used M-1 5w20 in all 5 of my previous foci. I use M-1 5w30 in my 04 Yukon Denali started when she had over 160K on it not one problem. I plan on using M-1 in my ST after brake in. I seem to side with Tom on this.
For the love of god, you don't read well do you?
My claims are for Mobil 1 5w30 on turbo vehicles only.
I showed proven data. I don't give a shit if you used different weights on different vehicles for different purposes.
If someone wants to run Mobil 1 5w30 and send in a used oil analysis to see how much it shears, please do so for the sake of data collection. Tom and I both agree about running the more durable oils.