Originally Posted By: JDD
What is the general consensus on when to dump the factory fill? I just did my 2010 Mazda3 2.0 at 1300 miles. Also, what is Mazda's factory fill oil, and is there any interest in my posting pics here of the opened oil filter element?
I do something similar to StevieC. I dump the FF at around 500 miles, swap the filter refill with a dino oil in the grade the mfg suggests. I drive that until 2000 miles are on the clock. Then drop it, fill with my favorite synthetic oil, and a new filter and follow the OCI's stated in the OM. Dino oil can be substituted for synthetic oil if it is dino oil you prefer.