Originally Posted by UnleashedBeast
You are correct about higher NOACK causing more deposits in a direct injected engine. That's why I choose to use the lowest NOACK percentage available in Amsoil ALM 5W-20 Signature Series. I will also be installing an oil separator to get what little does evaporate in the crankcase and sucked into the PCV system. Since Signature Series has half the NOACK %, it will also have 50% less chance for potential deposits.
For the record, Motorcraft 5W-20 synthetic blend has a very high NOACK in the 13-15% range.
Interesting. I tried to look up this value for Mobil 1 Extended Performance but their spec sheet did not seem to list it. Have you ever seen a Mobile 1 spec that include this value?