Originally Posted By: SlipperyPete
I used 0W30 AFE in our 01 Outback several years ago and it was loud from the beginning. Loud enough my wife noticed it, and she has never noticed anything about the operation of a car, ever. I switched to regular M1 5W30 at the next OCI and it has been smooth and quiet. I have used M1 5W20 and 5W30 in all of our vehicles since then and they are all smooth and quiet. I have no need for a 0W anyway so I see no need to try AFE in anything else.
What makes an Advanced Fuel Economy is tiny ball of metal that came out of the engine, kkkkK. Rollers from ball bearings! But is a great deposit cleaner, the metal blaster, bahahahahah.