Has anyone EVER seen, felt, or proven that an additive has worked as advertised?
Diesel Fuel Additives by STP® | Diesel Fuel Injector Treatment
Please do include biocides, cetane boosters and synthetic oils in your discussion.
My only experience was watching a family member use stp (the thick stuff) to slow down the leaky seal and the engine did smoke less. (in the 60s this was)
I used Starbrite Diesel additive and found out how bad the fuel system was on my boat about 3 yrs ago. Since then, she has a new tank, pump, and lines. and lots of spare elements for the primary racor 220 with R-24T (10 microns) element, and Nappa gold for the secondary, The engine is a universal 5416 (Z751 kubota)
Looking forward to interesting discussion!