Red Line 11604 SAE 5W50 Fully Synthetic Motor Oil - 1 Quart (12 Pack)

Quality as expected

Best group 5 Ester base oil on the market. Period.I have more than 350 used and virgin oil analysis (UOA and VOAs) and them confirm it. Must needed for any track junkie out there.Used RL for over 15 years now (mostly Porsche, BMW and VAGs) Literally extend and triplicate the miles on common problems as S85/S65 rod bearings issues. Same with timing chains on TSIs. Also noticed way less carbon build up on intake valves.

It retains its viscosity better than any other oil I've used, even after multiple track weekends. Also, very little oil ends up in my catch cans (compared to Mobil 1 and Motorcraft oil). This is a must for any Mustang owner that tracks thier car on a regular basis.A Boss302 owner

This oil offers excellent stability in high wear & heat situations. Running at oil temperatures regularly up to 285°F this oil never shears or thins and provides consistent reliable protection for my vehicle.I highly recommend to anyone!

Using this in my S65 v8 bmw m3. Great oil report after. No better brand on the market

I had my M3 E93 engine rebuilt from a 4.0L to a stroked 4.4L. The oil was recommended by the engine builder, I’d never used it before. All I can say is this stuff is the best I’ve ever used. After 5000 miles I had a small amount sent away for testing and the results were excellent. I’ll only change oil every 10,000 miles.

Use it on my boss 302. Car feels, stands up to use on the track or everyday driving. You should go about 7k before you change again, because if you change it at 5k or less it comes out clean still. I use this over mobile 1 or motor craft.

I put this oil in my 2011 5.0 Mustang. It seems to be good, but I only have 2,000 miles on the oil.We shall see what it looks like on oil change.