I don't believe it is difficult to find mechanics. Essentially, when we look at training or certifying people to work on any LPG system, whether it's the DieselFlex, the Dieselblend, or a vapour sequential injection system, or a liquid injection system, we need to start with a trained automotive mechanic. We train them properly on the operating principles of the LPG auto gas and then train them on the specific equipment they're using in their fleet.
There certainly is an added cost to the maintenance of the equipment. On the flip side, on these DieselFlex systems you can realize cost savings of 10% to 15%. On some of these larger highway tractors, that adds up to a lot of money. So they have to look at their individual situation and see if there's a reasonable pay-back on that investment and training.