Ok, this may sound like a stupid question but it has me curious. Im turning 16 and I have my truck already. Its a 1997 Ford F-150 4x4 with a 5spd. It is pushing 186,000mi. The only good thing is that i knew the owner and he only ran it on the highway running from Ohio to Florida. What should I expect to get out of this truck miles wise. I would like to put a plow and stuff on it but should i be worried about dropping that kind of money in the truck with this high of miles. It needs to last me at least 4 years.