Without being able to guarantee anything, the most hopeful result I've found seems to be:
Russel Petroleum Corporation
3378 Tankview Ct, Montgomery, AL 36108
(334) 834-3755
I get the impression they're a bulk retailer. If they won't sell it to you directly (bulk retailers usually require bulk orders), they can, at the least, direct you to a place which can.
M.F.A. oil co
In theory off road diesel is the same as that you would buy from the filling station although it may not be as pure or contain the engine preserving additives that the major fuel companies add to the diesel you buy at the filling station. In many countries the duty paid on Road fuel is Higher than that of off road diesel and as a result you could be breaking the law if driving a vehicle on public roads that is being fueled with off road Diesel.
Texaco off Hwy 81
You're best bet is to call local bulk fuel suppliers and ask them. If you can't find it, you're just as well to buy on road diesel - off road use is non taxable.
Any bulk fuel retailer will carry it. If you're looking for a small quantity, agricultural co-ops often carry it.
If you can't find a gas station which sells it, look for bulk fuel retailers in the region. If they can't direct you to a place where you can buy it from, you can probably buy it directly from them.
You go to a gas station in an area where off-road use is common--farm country, near big construction companies, places like that.
diesel fuel contains detergent, cetane improvers,lubrocity improvers, etc. home heating oil doesn't. most application are interchangable. truck stops commenly sell home heating oil because its cheaper. they also sell premium diesel which is supposed to be real diesel. that's why drivers buy howes, or power service and dope their fuel. dyed fuel is for off road use and does not have road tax collected on it #1 and #2 are viscosity ratings.
To find it at a gas station, you'd almost have to be in a more rural area. There really aren't many stations prone to carrying red dye off road diesel, and most customers who buy it (construction companies, farmers, etc.) buy it in bulk. I would advise you to look for bulk fuel retailers in that area, and inquire with them as to whether or not they have any customers they distribute it to for the purpose of resale. If they can't name any fuel stops which do, you should be able to purchase fuel at their facility, or even have a service truck come out to bring you fuel. If you can't find it, remember that on-road diesel can be used for non-taxable use - you just have to make sure it's specified on your fuel receipt that it's non-taxable use.
If you mean diesel fuel, you can purchase that from any fuel station. If you mean the clothing brand, you can find the products at good clothes retailers. You can also buy them from Amazon or ebay.
I think you can buy a diesel generator at any of the places that you buy a gas one. Why do you prefer diesel over gas. Diesel would be harder to start in winter cause diesel fuel tends to gel when cold out.
GoGas in Lumberton has it.