We sure do.
In fact, diesel is probably the one we're most concerned about, because it has a tolerance of only 15 parts per million of sulphur delivered into the customer's tank.
We actually produce diesel at our sites with probably around five parts per million of sulphur. We inject in the lines. We have our own internal specifications to inject into pipelines at eight, and it does tend to pick up sulphur because it's batched with other products in the line, with different levels of sulphur in each of those various products. We protect the diesel even more closely than all the products. Part of the challenge in moving around refined products versus crude is the requirement to maintain product specifications at the end where we deliver it into our terminals and where we ultimately deliver it to the customer.
There is a lot more handling required and a lot more care around product movement and pipelines than there needs to be. Forget safety and reliability; those are important whether it's crude or products, but product specification on refined goods is much tougher to deal with.