So the employee agreement just lists IRS reimbursable mileage - it does not specify a vehicle type. There is no requirement to a drive a truck, but my employer prefers for me to drive a truck so I can haul stuff when needed. My understanding from other employees is they drive standard cars (refuse to get a truck) and then when stuff needs hauling make the company hire someone to do it. But most employees do drive trucks. So I think it’s more of a “want” than a requirement.
Typical mileage would be 1,500-2,000/month. Some rare months maybe more.
I sure wouldn't buy a truck, at least off the bat.
First of all, you need to determine if you like the job, or if it is economically feasible to hold.
As has already been said, too many variables here (Fuel/Jump in insurance cost) to determine if you will at least come out even.
I know that I wouldn't want to buy and tote the note for a brand new truck to run it into the ground for the job.
For now, I'd drive your oldest car, and if stuff needs hauled, make the company pay for it.
IF you determine that you like the job, want to continue, and need to work with these parameters, I certainly would look used and see what you can buy in a manner that makes depreciation work for you. I'm thinking some type of used van (Fullsized or mini) that you could pick up reasonably and run into the ground.