If it was an 06LLY/LBZ I'd be very interested at 30k, my 06 has been the best vehicle I have owned. Still it's approaching 190K miles and I want to sell before it hits 200K.

The 05's had their share of potential issues and are not the most desirable motor IMO

The LLY is a great motor, just curious what you see as the problems. I am looking at 05's with 175k miles and they are avail. for about 12,000. Now I think this guy is smoking the front lawn because its a 9 year old truck. I MIGHT pay 25k but that would be it.

My buddy had injector problems twice on his 05 then the passenger side head gasket started leaking, this probably due to the 04-05 LLY tendency to overheat when worked hard, water pumps also had problems. If you google them these are the main issues, the 06LLY/LBZ resolved these and other problems. Stronger engine with more HP/Torque and completely Bosch engine management which was a big step up.

Having said that, the 05's were by no means a problem child like the 6.0 Ford of the same era. Had another buddy that never really worked his apart from towing a boat and was happy with it.. Here is a fair summary http://www.duramaxforum.com/forum/04...ly-issues.html

My 06 has been awesome and worked hard many times over nearly 190K miles.

My 04 6.0Leaker has been out of the truck twice with the heads off, and valve covers a couple more times for injectors in 190k miles. My 05 LLY has been completely dissembled twice, bored and upgraded internals to what is basically same setup as the newer LMM. Lower compression and better pistons, but stock it only lasted just 150 hours.

The 6.0 makes about 450hp, while the 6.6 is pushing 650hp, and is a h3ll of a lot more fun..

http://www.youtube.com/watch?v=tNQrSUoCGvI

But come the end of the day, that old beat up 6-leaker always gets to pull that bad A$$ Durramax home.... LOL

Now that is a good way to introduce moisture into an engine, and in a bad way. Running for ten minutes at idle is not enough to heat the oil and engine enough to boil off any water vapor moisture inside the engine. But, it is enough time to heat the engine up and then let it cool back down, resulting in condensation forming inside your engine. This is similar to why some woodworkers end up with expensive rusty tools, they heat their shop while they are in it, and don't when they leave. The heat cool cycles result in condensation and rust. If you are not going to use an engine, there is really no good reason to start it, especially during winter storage.

Thanks wobble- If I buy a duramax ( a big IF) I would not work it that hard.

In all seriousness guys, Wobbles Duramax statement above is good info. From the LLY to today the Duramax is IMO a solid engine platform. First gen LB7's I would avoid because the injectors were known to be trouble and were connected "under" the valve covers, which could lead to serous engine damage if one leaks and you fill the crank case full of diesel fuel. The first 04.5 LLY model fixed that, but still suffers from weaker piston and rod design along with a couple possible oiling related points of failure. By 06 they were getting that stuff ironed out, the LBZ is good and by 08 LMM, it's a rock solid platform. I know of a few LLY's with well over 200k, and a LBZ with 700K on it going strong. I'd trade my love/hate 6.0L Ford for one any day of the week, they are just way more reliable in the long run.

Back to the original topic, I don't believe a diesel suffers from inactivity near a badly as a gas engine. Your injecting oil, not gasoline. So when you shut them down for long time there is no need or way to FOG a motor like you do a gasser. Plus the ethanol content in gasoline today will draw moisture over time. Those are the two biggest points I can think of.

I haven't owned a gas vehicle in over 4 years, everything is diesel now even the wife's car. When I store the boat for winter, I just suck the engine full of good antifreeze and shut it off. Six months later, hit the key and shes ready to rock all summer...