I have used Diesel Kleen when I didn’t have the Cummins additive
Turbo Diesel is OEM Approved.
I am not at home but I do have a link to the cat site where they list their approved fuel conditioner.
I did find this after a little looking.
246-4968 is Cat Diesel Fuel Conditioner . It contains a variety of additives to improve the fuel cetane number, provide corrosion protection, improve fuel stability, and a variety of other benefits. It is intended primarily for areas using diesel fuel that does not meet quality specifications or for customers who want higher cetane or more stable fuel.
343-6210 is Cat Diesel Fuel System Cleaner that was recently released. It is a very effective detergent additive that cleans fuel system deposits. In field testing of this product, Caterpillar did see restored fuel economy from the standpoint of removing injector deposits that were adversely affecting injector performance. In caterpillars view they have not seen a fuel additive that truly improves fuel economy, they at best can restore fuel economy to like-new, which is what we have seen in applications using the Cat Diesel Fuel System Cleaner. But this can be a very significant benefit to an end customer who has fuel system deposits affecting performance.