RalphVa
Super Member
- Joined
- Dec 19, 2003
- Messages
- 7,873
- Location
- Charlottesville, VA, USA
- Tractor
- JD 2025R, previously Gravely 5650 & JD 4010 & JD 1025R
Would you leave a spoonful of crap in a container, pour beer into it and drink it? That's what you're doing by leaving this much (filter full) of dino oil to be mixed with synthetic. You'll probably get most of the viscometrics of the 0w40, but you won't get hardly any of the other protection that it offers.
I generally go the other way on changing filters, particularly with synthetics. I'll maybe change the filter midway through a >6k mile run on synthetic.
Ralph
I generally go the other way on changing filters, particularly with synthetics. I'll maybe change the filter midway through a >6k mile run on synthetic.
Ralph