I use this in my fuel:
BG DFC Plus
BG DFC (Diesel Fuel Conditioner) Plus combines all of the ingredients of BG DFC with DPL, Part No. 227D, plus a pour depressant/flow improver. Special pour depressant additives isolate wax crystals as they are formed during cold weather and prevent their growing together; thus, fuel flows freely at sub-zero temperatures. BG DFC Plus cleans the entire fuel system, controls engine deposit formation, improves diesel engine combustion and power, eliminates injector plunger sticking, eliminates nozzle fouling, extends injector life, reduces exhaust smoke caused by a dirty fuel system, stabilizes fuel in storage, is soluble in all diesel fuels, protects fuel system components from rust and corrosion, contains no metallic ash producing materials, and
provides the necessary film strength and lubricity to low-emission diesel fuel to prevent pump parts from scoring or seizing. Catalytic converter and oxygen sensor safe. This diesel fuel additive complies with the Federal low-sulfur content requirements for use in diesel motor vehicles.
Part No. 230 32 oz. (946 mL) bottle
I know our BG rep personally and he and his crew have done a ton of tests on the Des Moines city bus fleet to test his product with incredible results.
I recommend you talk to your local BG distributor and get all the latest info and decide for yourself. My local International dealer turned me on to him when I was questioning the ultra low sulfer issue.
One thing that was discussed was adding trans fluid to our fuel. According to their research it's not doing what you want it to.
(In no way am I affiliated with BG)