I second that thought, Currently there are NO V-8 diesel powered farm tractors that I know of. Little utility tractors in the 20-100 hp range use 3-4-5 and 6 cylinger INLINE diesels. Those larger tractors in the 100 to 300 hp range ALL use 6 cylinder INLINE diesel engines. The largest farm tractors in the 300 to 575 HP range ALL use 6 cylinder INLINE diesel engines. There is a very good reason for this absolute FACT. The inline engine is much more durable, simpler, easier to maintain AND AND produce more low end torque. Low end torque is what working trucks need to haul a load. This is why ALL class 5-6-7 and 8 trucks ALL use inline engines. Gale can just go and cash his GM check and laugh at the public that unwittingly buys into this whitewash. Those of us that know better are of no concern to the elete corporate spokesmen IMHO
In most cases a 4 stroke V-8 Diesel used in a Class 8 truck has resulted in complete diaster. The later Mack V-8 wasn't too bad but the rest of them did not cut it.
I exclude Detroit Diesel 2-strokes from this as they are a completely different animal, no torque unless held to the governor, basically a fairly tough 8 cyl Diesel weed whacker motor...
I have been around trucks for my entire life and have seen a multitude of V-8 failures in the past 35-40 years where a manufacturer took a completely reliable engine currently in use in a genset, a bucket loader, and other industrial equipment and stuffed it in a Class 8 to offer more power.
Navistar, Cat, Cummins etc. all tried it and failed. Low reliability, high warranty failures, sleeves moving, too heavy, excessive fuel consumption, cooling issues, whatever.
I feel that a V-8 diesel is happy when it has a constant load and is up to operating temperature.
That's why they work so well in locomotive, gensets, pumps, whatever.
I have seen the generators in a hospital tested, I can't remember the time spec but they were each started and clocked as to how quickly they could go from start to full load.
I found it fascinating to watch and hear that poor cold diesels go through that test, a sound like no other!!!!
When you put one in a truck the constant load factor reduces to 50% pulling and the other 50% coasting downhill with 80,000lbs. + pushing on the crank , RPM changes due to shifting, slight overspeeding, driver idling it with 140 degrees block temperature all night, etc. They will not stand it.
A V-8 does not have the natural balance of an In-Line 6 and in a no fuel condition such as coasting at 2100 rpms it is trying to shake itself apart inside.
Do I want one in a pick-up truck??? Not on your life, I don't care how good they try to make me think it is!!!
Not a real technical explanation but the best I have this early in the morning... :-:-laf