Just bought it today, 3.0 V6. Owner hadn't driven it in a year but it fired right up with a jump. Since then it's started every time so it seems the battery is OK somehow!

First worry is that upon checking the oil, it seems REALLY high. Like, is that even possible? I drove it home and nothing catastrophic happened, and I'll change the oil ASAP but could any engine damage have happened?



Second, upon further inspection at home, there are 3 of one tire size and one of another. One tire was 225/70/15 and three were 235/75/15. Again, getting new tires ASAP but any serious harm that could've been done from this? The dude I bought it from drove it MAYBE 10 miles, then it sat for a year because he bought a fancier newer truck. Also this is on one of the tires, so YAY glad it didnt explode on my way home.



Gave it a new air filter, PCV valve, plugs, wires, wiper blades- oil change tomorrow.

 

No harm done, you can run a single off-size tire on any vehicle, even a 4x4 in 4WD, most spare tires are off-size

In the case of a 4x4 you just can't run TWO off-size tires on one axle and use 4WD.

If it sat for awhile then ALL the oil may have drained down to the pan, usually there is a 1/2 quart or more that stays up top.

As long as oil didn't look like a milk shake(coolant mixed in) all is well.