Mobil 1 EP 5W-30: 7,110 miles, 2007 Mazdaspeed 3

[Garak]

Originally Posted By: Bigdaddyeasy
That was very helpful thanks. I have a little better understanding of the subject now.

OVERKILL pretty much covered it. As I said, if the OP sticks to one product as it appears he's been doing, that's the way to trend UOAs. Anything else is a waste of time and money. As I mentioned in the thread about getting a RP HPS 5w-30 VOA, the fashionable way to do things it to jump from brand to brand and viscosity to viscosity and chemistry to chemistry and do a bunch of UOAs, but that accomplishes a lot of nothing.

 

[Greasymechtech]

I would try M1-HM 5w30 once just for comparison.

Iron consistent but wonder if it could be improved on with a different oil.

 

[Garak]

There's no point in chasing lower iron numbers. That's been covered on BITOG ad nauseum over the years. Trying M1 HM 5w-30 "once just for comparison" will provide a useless UOA data point and throw his trending out the window for at least the next couple UOAs.