My 96 Subaru Outback had about 150,000 miles on it when I decided to start using this. My car definitely fits the profile for this oil. (I really don't know what was used before because I typically took it to Suddenlube type places.) At my first DIY change, I used Maxlife 5w30, then went up to 10w30 for 3 or 4 subsequent changes. Anyhoo, as is typical of many Subaru engines, there is a good bit of ticking noise. Piston slap or lifter ticking ... hard to pick which, I suppose. Anyhoo, instead of just after startup until warmup, this ticking had gotten louder and more frequent (as in CONSTANT) over the last few months. I was fearing issues with pistons and valves and such.
Last week I was due an OCI and I decided to try another oil, just for gits and shiggles. I put in "plain old" Castrol GTX 10w30 that was on sale for $1.44/qt at the local Advance Auto. The first couple of days thereafter, there was still some ticking, but it was lessening. By the third day (and still going after a week ... fingers crossed) the ticking is GONE. The only thing different from tick to no tick is this change of oil brand/type.
So, for what it's worth, that's my experience with MaxLife.