Engine oil LIQUI MOLY or AMSOIL
I’ve personally ran amsoil in all of my vehicles, and haven’t been disappointed
Just got my first Blackstone oil report on this engine. LiquiMoly 5W/40, 9,098 Miles. Here' s their comment: "We think you've got the oil change interval dialed in pretty well, but with results like these, you could push it a little if you wanted or needed to.
I have used the LiquiMoly kit and it seems great. Awaiting my Blackstone oil analysis from the first oil I put in...ran it for 9000 miles, which was more than I had intended.
Switched over to LiquiMoly Molygen since 90K. Engine and transmission drives like new.
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.
Right now I have liqui moly 5w-30 in there and it runs fine.
I run Amsoil 5w40 warmer temps and Ravenol 5w30 colder temps.
I paid $90 for the 9 liters of liqui moly OEM oil my s5 requires and did it myself.
I've ran liquid moly strictly on my car.
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
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