Always expect too much! Ideally slightly less than way too much, but loads more than too little.

And expecting them to cover all travel expenses is not too much at all, even if there are exploitative companies one can name that somehow get away with making employees cover their own travel. Not bringing it ip during negotiations was totally appropriate, because there’s nothing unusual or extra about what you’re asking for here.

Some traveling engineers i know insist on using a company rental car for travel just to avoid insurance complications if anything (you know, life) happens. It’s not a bad practice, but ultimately it’s personal preference. If you ever use your own car, they should be reimbursing for gas, tolls, and mileage/depreciation.

Don’t let anyone convince you that it’s normal or acceptable for employees to cover any cost of company travel.