Not sure where you heard the 500 is 14 liters from, as far as I know the only Detroit S60's available are 12.7L. There used to be an 11.1, but no more. My truck has the 470 HP S60, derated through the computer to 360, which is still more than enough for my single axle D unit- it can blow just about any truck off the road if I were a redneck maniac and wanted to. I can toy with any big truck. If I had a tag axle and could haul more weight, I'd have it cranked up more. I think the 500HP version is the S60 turned up to max, with a larger turbo. It's for really heavy duty jobs like a tow truck, not an expediter. If you find one, it can be turned down, and will get better fuel mileage by doing so, but should have good (800k to 1 million miles) lifespan before rebuild even if you keep it at 500HP.
S60's are reliable engines, and have great resale value. They are cheap to rebuild when needed.
I have had 2 problems with my S60, and one turned out to not be it's problem.
A few months ago it started idling erratically, like an injector was going, but was fine under throttle. This turned out to be my truck's batteries, discovered the first day the temp went below freezing and the engine would not crank. When I put the 4 new batteries in it, the idling has been fine since. Batteries are a very important part of the whole electrical system, and the ones I replaced were the original ones, about 3.5 years old. I hear a lot of trucks with S60's at truckstops doing this erratic idling during the winter, and now I know why. It's computerized injection system must need good strong batteries when there is not so much alternator current available at idle.
The other problem is new. There is an oil leak that has started from the adapter that the filters go on, at the area where the adapter goes into the block. I thought I fixed it by retorqueing the bolts, and have now discovered that this leak only happens when the engine is started stone cold, and stops after about 2-3 minutes. It's not a big worry at the moment, as once warm is won't leak a drop, and there is no significant oil loss. I am, however, investigating the cause of this at the moment, as I don't like letting little problems turn into big ones. To remove the adapter is a major job, one I'm hoping does not have to be done.
Engine has just passed 250k mile mark.
-Weave-