How to detect a tanker cheating?
Brother, you're a little vague about that. I don't know how you measure the tanker. The estimated link is out of measurement. Send more detailed information and maybe help you.
It's easy to do. You get a lighter, find a car that's OK, burn it, see how long it'll burn, and then you're looking for the car that you don't feel right. You can tell if he has any problems.
You can weigh the car and weigh the car to know how much oil it contains