Engine oil VALVOLINE or AMSOIL

I have used Amsoil for years and I change my oil every 15,000 to 20,000 miles.

Amsoil 5w-40 in my 3.6 Corrado that gets pushed hard to redline often and has seen somewhat high oil temps when driving harder. I use liqui moly 5w-40 in my 3.6 CC and 3.0T Q7.

if you to go for the best oil and the most expensive ones, you can use liqui moli, valvoline, ams oil

I'm over 50 K on my current Amsoil change. I drive my car a couple thousand miles a month for work. I also put Archoil additive in it when I did the change.

AMSOIL Signature Series 5w-30 with a black JDM Subaru Filter is the superior combo.

Valvoline MaxLife 10W40. Made specifically for older engines with high mileage.

I recommend Royal purple XPR, or amsoil zRod.

I put all the oils people be recommending into the ai to compare with the data sheat information from the manufacturers websites, amsoil still comes out on top ????

I just did the restore and protect on my 2015 and let me tell you that it has made a massive improvement. Immediately the engine runs quieter and smoother and after 500km it’s like my engine has much more power.

I refill about 1/2 qt of oil every 2500 miles.