Engine oil OEM Toyota or OEM Honda

I have a Fit 2019 and switching from 5w30 to 0w20 improved my mileage from 650 km/tank to 800 km/tank.

Honda scooter oil & Castrol, tried and tested ko na. btw yung castrol ang ginagamit ko kapag summer na at sobrang init ng panahon then balik lang ulit sa honda engine oil once tapos na yung mainit na season

It'll be fine, my only argument against it is that you're probably paying too much for that quart. I've always used the Honda GN4 motor oil, buy a gallon for ~$30 when it's time for an oil change and have a little left to spare. Any dealership should carry this, Yamalube is also basically the same thing.

I paid $15.85 per US quart for Toyota Genuine 0W8 oil in Canada.

Do it, new engines throw off a lot of burs and metal particulates before the parts get seated. I changed the oil on my 2023 venza limited at 950miles. Listen to the car care nut master Toyota tech who sez change the oil at first 1kmiles. He cuts open his filter after 1k miles and the filter is full of metal particles.

I just changed the oil in our new 2023 RAV 4 Prime at 1,000 miles, we have been driving in HV mode to run the engine for break in. I also sent off an oil sample, but have not received the results yet. I did open open up the oil filter and found some tiny bits of metal! At least the filter catches it. I have always changed the oil after the first 1,000 miles in our new cars (Toyotas the last 30 years). Also the dealer said every 10k miles but I always do it at 5k.

I feel it is a good idea to change the oil after the first 500-1000 miles.

I do this just in case something got left behind in the manufacturing process that I don't want circulating in the engine.

There is no guarantee this will make any difference in the life of the engine.

I did my 2024 corolla cross at 1300 miles. Will do it again at 5k miles, and then standard 5k after that. Toyota does them at 10k because it saves them money since they give you a couple free ones off the get go.

Honda's own 0w20. It would feel sluggish at the end of the oil life. You can feel it on the hybrid model

Brought it in for 5k ToyotaCare at the dealership I bought it from. Used wrong engine oil (at least they listed wrong on the service sheet but promised they did use 0w20) - GRC is only model where 5k or 6 month oil changes are standard. 2500 miles if driven hard. Fucked up the trans oil I asked them to change - used wrong oil type. Fucked up tcase and rear diff oils. Found oil spilled on some pieces of the subframe. Of the 2 test drives they did doing the warranty covered alignment they had 10+ drive pulse hard acceleration /braking/cornering alerts on both 4 mile drives. I changed the engine oil, trans, tacsee, rear diff, cleaned oil they spilt after picking it back up. They said they'd corrected their errors only after I got Toyota corporate involved. I didn't trust them to do anything so corrected all myself.