Highly recommend getting a catch can whether it be JLT (what I’ve got) or another brand. Just changed my oil (Amsoil Signature 5w-30 with K&N filter HP-2011) just less than 5,000 miles since last oil change. Had about 2-3 tablespoons of oil in it. Also installed colder Motorcraft SP-542 spark plugs. I’ve not driven it yet but, at idle in my garage it seems to idle smoother and throttle response seems quicker.
Pay attention to the lack of a dual valve on the JLT. IT MATTERS!!! It's silly to do it half way. The can won't catch anything when under boost if you aren't using a dual valve can. Do some research into it if you don't believe me. Instead of basing your decision strictly on reviews try doing some research into the technology as well. You'll find that a dual valve is superior due to it working under boost as well as normal acceleration. After that using reviews makes sense. JLT is a fine can just inferior technology as it only catches undernormal acceleration and does nothing for you when you need it most...under boost!!