2X. π It would be nice to get an oil sample. Take along with you a clip board and some coveralls. Crawl around the bottom of the truck. Take your time. Make a list of things you want to check out before you leave home. Use your clip board for all of your answers. I remember when I bought my second truck, the salesman said I'll see you in and hour or more. What I am saying, take your time looking the truck over. Write your answer done on your clip board of what you our seeing. That way you don't half to remember what you saw.
Best of luck,
Al