10W30
All depended on the engine in it and rear gearing.
The "Dodge" diesel is actually a Cummins heavy truck engine. With proper maintenance, it should last about 250,000 miles. The injectors will need replacing every 100,000 miles. I would say 500,000 is average for the engine. I do not agree about the injectors. The truck will wear out before the engine does.
An engine from a LIncoln would not be a direct fit into a Dodge. That would take a lot of modifications.
You would have to know the size and type of engine, the age of the engine, the age of the bus and weight of the bus. As a general rule, a diesel engine on a bus would get around 6-15 miles per gallon.
Have vehicle scanned to determine problemv and/or clear codes
Most new cars go 100,000 miles before they need a tune-up if they have the platinum plugs installed., I would contact the dodge dealer and see what plugs are in your engine.
The engine codes for a 2000 Dodge would be either 2 digits long or 4 digits and start with a "P".The engine codes for a 2000 Dodge would be either 2 digits long or 4 digits and start with a "P".
10w30 or 10w40 is fine for all year driving in warm climates
A big block Chrysler (Dodge) 440, or even a Hemi would bolt in, with the appropriate engine mounts.
rated capacity is 5 quarts, i would use 5w30 unless you have very high miles
the engine mounts could be bad
It would not be a direct fit, but anything is possible with enough money.