As to which one, the two that are reported to induce the *least* consumption are Liqui Moly Leichtlauf, and Fuchs Titan Super Syn.
Liquid Molly 5W-40 is what I use in mine.
I run liquimoly and it has been great in every vehicle I've put it in. I run WIX XP filters. All my engines run beautifully. My ram 1500 tows frequent and gets ran harder than most.
I've been using AMSoil 5W30 in my WRX since it was new (2003). Turbo is still good, and head gaskets lasted 17 years. I think it's worth the price.
I use Amsoil 0W20 but I’m a dealer. I have access to the test they run comparing it to Mobil and AC Delco stuff. The Amsoil is supposed to be better longer, but to me that comes down to your filter more than your oil.
My 2019 consumed maybe 1/2qt for the first two oil changes. Swapped to Liqui Moly last 2 changes and been zero oil consumption.
my personal analysis’ on my s54 over the past 7 years using LM 10/60 have all been perfectly fine with low wear numbers.
Amsoil allegedly is the best. I use it in everything and no issues so far.
I've used both and have put over 50,000 miles on my B46 (b48) without any issues. I think the liqui moly might be a little quieter, but otherwise no difference I can find. I would not put a heavier oil than the engine was designed for. These engines are a little noisy IMO but that doesn't mean anything is wrong. I actually think mine is quieter now at 88,000 then when I bought it at 34,000.
Liqui Moly 0w20 6200 is what I run and a factory filter
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