There a way to find the age of a companies' truck fleet?

Just call and ask... Average age might be 2.5 years, so you'll end up with something new or maybe 5 years old. If they are well maintained age doesn't matter much anyway, I've driven great trucks that were 8 years old.

 

Do you have a cdl?
Do you live in Texas?

Look at Western Dairy Transport in Abernathy,TX. Looks they keep pretty decent trucks.
wdtmilk.com

 

Stevens average age is 18. They range up to 4 years old, but Stevens usually gets rid of them around 3 years/450k miles.

 

You should be fortunate that a trucking company wants you. Did you find another company that is better?

You cannot expect to be issued a cherry fresh rig with 30 miles on the odometer, most of the time new hires are provided with rigs that are somewhat older and easier to dispose of should a bad wreck happen. If the company is only doing 18 month old rigs, that tells me perhaps it is a leasing operation and may not have the pride in ownership if they were buying the rigs out right to keep for years and years. Maybe it's cheaper for them to cycle a thousand tractors for new ones and keep that going. I prefer companies that buy tractors and trailers to keep. Pride in ownership will reflect first class maintaince upkeep and a desire to work well for a long time, rather than deliberately disposing of trucks because the lease is up in a few months.

If you stay on the road long enough and behave, you will too be issued a new rig. You will find that it is your rig and no one else's it will be exceedingly difficult to be told to clean it out in a years time.

 

Many companies do that; get rid of the trucks when approaching half million miles.

 

Yeah, they dump them just before the warranty expires so they can claim they are still under warranty and charge a few extra bucks. I can't say that I blame them, though. Why lose $20k for a few more miles?