I'm new to the Forum and I'm looking for some feedback with those more experienced than I am on diesel engines. A little back ground first...I'm not new to boating as I've previously owned a Sea Ray 380 Sundancer and Carver 440 Aft Cabin both on inland fresh water lakes. I've been out of boating for about 10 years due to other demands but we're looking to get back in. We're at a different stage in life. This boat will be operated on inland fresh water lakes. We're looking at several Sea Ray 460 Sundancer boats. These obviously all have diesel engines which I'm not nearly as familiar with. Most have Twin 446hp Cummins 480CE engines but one has the Volvo TAMD 7.4 EDC engine. Two questions... 1. The boats we're looking at are 12-15 years old and hours range from 175-1100. Knowing diesels have long life if maintained and operated properly I'm not too concerned with higher time engines assuming a survey revelas no issues. I am a little concerned with the lower time engines, specifically a 13 year old engine that has only 175 hours on it. Is the low time an issue to be concerned about? 2. Cummins engines appear to be much more widespread as the standard propulsion with Volvo being an option. Any reason to be concerned about Volvo engines? Thanks in advance for your feedback.