OB mechanic opinions.

quote:

---

every 3k miles.

---

That still a thing?

Send your oil off for a used oil analysis. Then, make your decision whether or not you should keep your current regime.

I go between 5k and 7500, and I run my truck pretty damn hard. I use Quaker State Ultimate Durability and Mobil 1 filters. I do have the advantage of a rear main seal leak though, so I add a quart every 2500mi

quote:

---

Is it worth it to use a synthetic with such short intervals?

---

nope...no benefit at all to synthetic if you are changing every 3K miles....

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.

Open your manual and do exactly what it says. The engineers that made your vehicle are smarter than the OB.

Keep in mind filters make a difference too. Wix makes a dang good filter compared to others. Most standard filters including Wix are only rated to 7500 miles. Unless you buy the extended life/performance filters keep this in mind.

Myself, I run Mobil 1 synthetic along with a Wix filter most the time and change it at 7-7500. No issues here.