I haven't read every post on here but I will be and I am unable to find a point where reliability comes into the discussion. I love the original Mack truck. I drove a ch mack for a year and was not at all impressed. As the transport manager of the company at the time we looked at the Mack and with no reliability due to the Renault engine we bought 4 volvo's. we still have one and I just traded my 520 globetrotter on a new Mack superliner with the 685 MP 10 (Volvo engine) with the mDrive auto Trans and I wish I could have got the V8 Mack motor so I could have had a real Mack but the MP10 engine is the only reliable engine they have had since the V8.