With all due respect, I disagree. Logic behind that is that is that to put 150,000 miles on a truck in five years, that's a lot of driving. Most likely highways. I'm going to generalize here, and say "as everybody knows", highway driving is very easy on vehicles. Not like city driving, lots of stops & starts. Highway driving allows the vehicle to reach operating temperature and stay there, smooth & easy.As for years vs miles, a 10 year old truck with 40,000 miles is more valuable than the same truck at 5 years but with 150,000 miles.
Conversely, a 10 year old vehicle with only 40,000 miles, that seems abnormally low. Unless you know the entire history of the vehicle, why would you hypothesize that it sat for so long? Maybe somebody drove it for 40,000 miles the first year, then they went to prison and it sat in the yard for 9 years? Or what if it spent 9 of those past 10 years broken down? Unless you're some old geezer who never drives anywhere other than to the corner store and back (no offense, Jerry), there's no way someone can own a vehicle for 10 years and only put 40,000 miles on it (or 8 years/25,000 miles, in your case) unless it's never driven. Never taken out on the highway. Never allowed to warm up or reach operating temperature. You're going to have rust in the exhaust and internal engine parts, dried up seals, the gas will gum up, rubber and plastic parts will dry up and crack, and you'll have all manner of issues just from it sitting so much. I'll let you go ahead and google what happens if a vehicle sits for a long time, trust me, there's lots of info out there. Letting a vehicle sit for years is the worst thing you can do to it. Or maybe they just have six other cars and rotate among them every few months to keep the mileage low. Either way, same issues would still exist.
So to me, the 150,000 miles in five years truck is going to tell me more of it's story. It was probably a fleet vehicle that was maintained, and it's going to have had plenty of miles under it's belt so that all the bugs would have been worked out already. I'd just be awfully nervous about the low mileage truck, get what I'm saying?
In any case, this pedantic ruminating is not helpful to you now. Best of luck with your current vehicle! ::chevy::