Contact & Support

We're here to help.

Questions about your account, a load record, a receipt or a truck service? Email us we read every message and usually respond within one business day.

Email support

Send us a message

For account questions, billing, missing features or anything else email is the fastest way to reach us. Include your username so we can look up your account quickly.

Support@Dieselbook.com
UCR & Cab Card services

Credential service questions

For questions about a UCR registration or Cab Card you ordered through Dieselbook include the vehicle VIN and the order date in your email so we can track it faster.

Support@Dieselbook.com

Common questions

How do I add a truck or trailer?
After signing in, go to your Dashboard and select "Add vehicle." Enter the year, make, model and VIN everything else (loads, receipts, reminders) connects to that vehicle automatically.
Can I use Dieselbook if I don't own the truck?
Yes. The Driver Plan is designed for company drivers who want to save their own load records, ticket photos and payment proof without needing the full business features.
How do I attach photos to a load or receipt?
When saving a load ticket or receipt, tap the photo icon to attach an image from your phone's camera or photo library. You can attach multiple photos per record.
What happens when my free trial ends?
Nothing gets deleted. Your free records stay accessible you just can't add more until you subscribe. Free limits are per-feature, not time-limited, so there's no expiry clock.
How long does a UCR or Cab Card order take?
We file manually and typically complete orders within 2–5 business days. Once done, your proof is uploaded to the vehicle in Dieselbook and emailed to you.
Can I cancel my subscription?
Yes, at any time. Go to your account settings and select Cancel Plan. You keep access until the end of your current billing period. Email us if you need help.