Engine oil AMSOIL or Eneos

Amsoil is just an above average full synthetic oil. It's nothing magical. It has a higher than normal "Total Base Number", which is what allows it to go longer between changes without going acidic.

Eneos 5w-30 full synth for my 06 WRX. It has a high zinc content.

I use Amsoil 0w40 or Eneos 0w50 in mine. For sealing and shear resistance for metal to metal contact, thicker is better.

I have exclusively used Eneos 0w-20 in this car - the non-Sustina version. This past oil change, I started using Eneos Racing Street 0w-20 as they're phasing out the OG 0w-20.

Both have worked very similarly for me. No issues with anything other than E85 dilution when I'm running it.

I run Eneos 0w-20. Lots of people love Mobil1, if only because it is often on sale at WallyWorld.

I run amsoil Signature 0w20.

I ended up returning the Castrol Edge 5W-40 and got AMSOIL European Car Formula 5W-30 Improved ESP Synthetic Motor Oil instead, which is VW Approved and 504 spec. Its quite pricey though, $180 CAD for 12 x 946ml.

Amsoil XL 5W-30 in my 2016. Swapped with a new OEM filter every 6K.

Eneos 5w-20 in my 2008 2.3 liter Mazda3. It's a Japanese-branded synthetic oil that you can get from Napa Auto. I've found that with Eneos, my Mz3 stops consuming any oil (in both my 2007 and 2008 2.3's).

Eneos 0-20.