I think that most inspections are made by tax auditors rather than cops. I think that most common violators that the auditors are looking for are for heavy construction machinery/trucking industry. The auditors would problably look though the log books/receipts for fuel orders and caculate if there is a short fall in expected consumption.
I thought as much. Makes total sense during an inspection when trained folks are checking everything from weight to fuel logs to hours on the road, etc.
The police in the farming communities in Canada used to carry a siphon hose and check peoples fuel, but only if they were running out of other charges or fines. The bigger problem was packing marked fuel in jerry cans or tidy tanks, there easy to check. I would be suprised if anyone on this forum has ever been checked or knows anyone who has? at least in a passenger vehicle. I would not worry about that as much as the fuel quality.
Again, because they knew that this was a possible violation in their area so they were prepared with some equipment to actually do a look see.
Thanks guys. Given what freebie has said if you run your alternate fuel in an aux tank slung under the rig seems like not likely to be much of a problem.
Cheers