The 6.1L HEMI earns above average remarks for reliability. It’s not the most reliable engine around, but it’s also far from the worst. All of the modern HEMI engines offer respectable reliability, and the 6.1 might be the best out of them all. It is a bit more simplistic, and it lacks some of the technology found in the 5.7 and 6.4 HEMI engines, such as MDS. When problems or failures occur, the three "common" ones are roller lifters, misfire and oil consumption. Lifter rollers are really one of the only true “common” problems on the 6.1 HEMI. Otherwise, there is not a lot to discuss. The engine uses 16 spark plugs, which leaves a lot of room for potential failures and misfire problems. High oil consumption is another issue but it doesn’t seem to cause any reliability or longevity concerns. You just have to keep an eye on oil levels. Maintenance is, of course, one of the keys to ensuring the 6.1L V8 lives a long and reliable life. Change fluids on time, use quality oils, and repair problems in a timely manner when they occur. Do all of this and chances are you’ll have an excellent experience with the 6.1 HEMI. Overall, the engine offers a very compelling balance of performance and reliability. The 3 Most Common 6.1 HEMI Engine Problems - 6.1L V8 Reliability (tuningpro.co)
What is the most unreliable engine of the Challenger models from 2015 to current? Weaknesses of the factory 392 SPWB including suspension? I would have thought the supercharged engines / Challengers might have had more problems in reliability area?
