Engine oil Mobil or Motorcraft

Mobil-1 guy myself, at least so far. No issues, good price

Mobil 1, it’s better than 99% and you can get 4 quarts for $27 at Walmart.

Mobil 1 full synthetic 5w20 or 5w30 is best in my opinion, and I’ve always just used a fram ultra from Walmart never had any problems and my K20 seemed to enjoy it

My tacoma has 352000 miles have always put mobile 1 in it

Full synthetic Motorcraft for my Shelby, Roush, SHO, and Focus 1.0 ecoboost.

Ford performance oil filter for the Shelby. Motorcraft for the others.

Why? I had a Ford tech tell me any and all problems they'd ever seen with a Shelby engine involved one that used non-Motorcraft brand in engine or filter.

I run 10w30 motorcraft because my 300 doesn't dry start as bad with it

I personally have run Mobil1 0w-30 in my GSR for the past 250,000+ miles, since back in the mid-2000's.

Of course, after I bought it I dropped the oil and ran what I like to run in my cars/trucks which a Mobil Delvac product 5w-30. It’s a synthetic but it’s more used for the heavy duty market. I checked the oil some 4000 miles later and it had a reddish look to it just like yours. After the next oil change I never saw it again.

Installed new oil and filter, plus BG oil flush, ran at idle for 30 minutes (warm-up, plus 15 minutes). Changed oil and filter again, using Mobil 5W40 Euro oil.

Make sure you don't run Mobil 1. Subaru engines tend to shear Mobil 1 down to a lower weight oil quickly.