Engine oil AMSOIL or Motorcraft

Amsoil Signature series 5w30 is one of the best oils you can get that meets the oil specifications

If you want oil that has zinc, close to the oe oil weight, and is really good I'd go with ams oil, it is expensive but after 3k miles mine is still really clean

I have been using AMSoil for years and did the once a year/25k miles oil change for years and and my engines have had zero issues.

If you only daily and don't run hot, hard, or do lots of WOTs; then just use Honda or other quality oil that you are comfortable with. If you push it harder and want to spend money, use something better like Amsoil Signature (my choice), Royal Purple, or Motul.

I run Amsoil signature blend and filters. Expensive but I believe in it.

I only use amsoil in my gti...would never use n e thing else in my car

I’ve personally ran amsoil in all of my vehicles, and haven’t been disappointed

Ran fine when I got it but I switched to amsoil and it has changed the sound of cold starts. MUCH QUIETER!! and seems to have smoothed out the idle over time.

I run Amsoil 5w40 warmer temps and Ravenol 5w30 colder temps.

Stage 2+ 2016 wrx here, in my experience (with having run both full synthetic amzoil and motul) I can honestly say that while both are rated very good for the FA-20 I would lean toward the motul simply for responsiveness. The car just seems to respond better to that brand, 100% just off personal experience