I have a truck that my grandfather owns but I pay the note every month and use it

[dkucenski]

for my business can I still? use it as a tax right off? gas,note,ect.

 

[chatsplas]

NOPE, don't own it.
If you have a written installment note with granddad, or a written lease/use agreement with him, MAYBE.
read up on vehicle expenses at www.irs.gov