I ran one in a Caliber which is cousin to the avenger. Traded around 165k and ran as new. I checked with the dealer on timing belt since the owners manual was not clear. Timing chain on my engine and no belt change required.

I changed the oil, filters and plugs and nothing else. Seems like a very solid engine.

The car was pretty solid as well. Struts, one control arm (bushings shot) and sway bar links around 100k and nothing else beyond basic maintenance.

Mine had a manual transmission which much preferred redline MTL lube vs the recommended ATF + 4.