335dM a guy whom drives a lot of diesels and had an F250 told me that SHELL was expensive but the results were way better, and so far it has not been wrong, I just refilled my second tank on it and will see what it does. Car is running great but I have to have the dyno run to see if any of RENNtech's flash has been removed.
RENNtech Flash/WAGNER IC
VMR710 19"/Execuhitch Hitch/Koni FSD
Soft Ride Bike Rack
Amsoil Cetane Boost Diesel Fuel Additive
Amsoil Diesel Fuel Additive Concentrate