Keep that truck! Just maintain it and upgrade certain things like belts,hoses,coolant as others have advised. Hey,call me crazy but I bought my sons old 1993 Dodge diesel with 280,000 on the clock and we are taking that on trips. Getting a retro trailer to go with the old truck which will match the old f**t driving it. I went through the truck and replaced all belts,hoses,thermostat,radiator. All new brakes including master cyl. Shocks too. Tranny was redone at 240,000. The engine just runs great. No worries. Enjoy yourself!!
As has been rightly explained, it has to do with the third injection event for emissions.Wont hurt anything. My 07 5.9 (built in 06) would get blacker than night just after a few miles. Normal. Now my 93 5.9 stays clean even with 300 K on the clock.
Before retiring, I flew for the company a lot. Because I'm a big guy I always booked an aisle seat so that I could lean into the aisle for the comfort of the others in the row. On one flight, there was a retired teacher in the window seat and some smart aleck teenager in the aisle seat. I told him that he was in my seat, but he refused to move into the center seat. So I sat in the center seat and never touched the lady in the window seat. But the smart aleck was bent over the arm rest into the aisle. He didn't say a word. One of the stewardesses heard the whole exchange. She didn't say anything either, but she made several trips up the aisle with her empty service cart, banging it into the back of his head each time. I've always wondered if he ever flew again.
Sounds like the flight I had with Spirit! I booked a window seat and when I boarded there was a young teenage girl in my seat which left me in the middle. I asked her to move,she started to give me an argument.I told her I booked that seat because my right arm has involuntary spasms making it flail around and it needs to be next to the window so as not to cause "issues". She moved then!The older gentleman on the aisle buried his face in his hand trying to hide his laughter. It was only a three hour flight but a few times my arm "jumped"and hit the window. I thought her eyes were going to pop out of her head!