Engine oil AMSOIL or OEM Honda

8k miles is just fine. I did that the entire time I've had multiple cars and they have gone a great distance:

I use my 09 Fit as a courier vehicle. I've driven over 80,000 miles in 14 months. If I did oil changes every 5k miles, I'd be under the car every 3 weeks.

I just follow the maintenance minder, which works out to 10k miles, give or take, but I've done that over all the 175,000 miles I've put on it in 10 years. I use Castrol GTX high mileage, but I'm sure it doesn't make much difference. I've seen a lot of stuff saying Walmart Supertech is probably just as good,if not better than name brand oils.

I do my own valve adjustments, and the inside of the engine is nice and clean...

I drive my car pretty hard, so 5k is preferred for me.

I change mine every 5K.

Worth the piece of mind to me considering it a turbo engine.

I do mine every 5k. It maybe adds one extra oil change a year for me, if that.

On my 05 cr125 I ran amsoil low smoke for riding mostly harder enduro stuff (worst bike for it, but a fun challenge).

I got a good deal on some amsoil and I love it, pricey but worth it tbh!

Amsoil z-rod is what I run but nothing wrong with rotella diesel oil.

Amsoil. I run it in anything and everything they make fluids for. Even the 2 strokes. Father has been a dealer for decades and the number of stories he has backing up amsoi's marketing claims is IMPRESSIVE. I've personally seen a few success stories already and PLENTY of scientific testing

Amsoil 5W30 SS, I run E85 so I wanted something I could trust to handle fuel dilution