re: OB mechanic opinions.

Few things, my 3 cyl 1000 runs up to 11k rpm and averages 8-9k rpm. Manufacturer recommends 1200 mile oil changes. I was doing them at 800. Now, after doing oil analyses, I typically do 3k mile changes.

I don't know what you're driving, but I will 100% guarantee that it isn't as hard on oil as this toy.

If in any passenger car with a more than 3.5 qt sump, 5k is fine. If you're doing extreme track use, feel free to change it more often.

0w40 mobil1 in our 4runner is a 10k fill.
It was a 5k fill in the xterra.
10w40 mobil1 is a 10k fill in the jeep.
0w20 edge is a 10k fill in the yaris.
0w40 mobil1 is a two year fill in the mower.

No need to change it early. But it's your vehicle.