Engine oil OEM Mazda or AMSOIL

My preferred is Amsoil 10w30, the good stuff. Seem to burn less of it off when driving hard.

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.

I run Amsoil small engine oil in my 2000 inverter.

Amsoil since day one, never let me down and improves mileage as well.

Amsoil Signature 5w-30

It’s probably placebo but I feel that I burn less with Amsoil. That said with current prices I’ve gone back to my default of Castrol.

O-w20 amsoil is top notch, expensive but worth it.

I use Mazda Moly 0w-20 in our 2014 Skyactiv CX-5.

I use Amsoil in every vehicle with an engine that I own...this has not changed for 25 years. Amsoil is so good I'd pour it over pancakes if I ran out of syrup.

I'm using amsoil 5w30. Great product. Real synthetic. Superior protection.