Engine oil OEM Mazda or MOTUL

Motul 5100 because it makes the gearshift feel nice.

I have only used Motul oil in my car since it’s first oil change. Motul 5w-30 in mine as it’s boosted and only driven in the summer.

I’d just stick with Motul, typically you pay for what you get.

Motul 7100 is good but quite expensive. I had good experiences with it. Not sure if its just me but it seemed like it holds heat better? My temp gauge always seems to hold steady at three bars when not stopping and my N400 feels smoother for shift changes.

Motul 5w-30 [or 5w-40 when ambient temp is above 80] 8100 X-clean EFE, based on IAG's recommendation for the FA20

I live in the same area with the same motor and run Motul 300V competition 5w40 on my high mileage track car at the recommendation of my mechanic

I would say 0w20 Motul 8100 is a solid choice.

I use Motul's 0w-20 "Eco-lite" and change about every 4-5 (or April-October really) with about 25 autocrosses and the highway driving to get to them.

I use Motul 300v 0w20, plus oil analysis from Blackstone Labs, currently every 6k miles until they tell me otherwise

From my personal experience, I used to use Mobil 1 and Pennzoil Ultra Platinum oils, which are really high-quality oils. However, I did notice a big difference when I began using the OEM Mazda oil. I don't know what is so different about it, but my engine runs much more smoothly and very quietly. When I am at a stop light, I don't even feel the engine running, it's gotten that quiet, and I just hit over 100k miles.