STP Diesel Injector Cleaner is specially formulated to restore performance and efficiency of diesel engines by dissolving harmful deposits.

It also smooths rough idle, helps reduce fuel consumption and exhaust emissions. In most cases, the difference will be noticeable after just 50 miles.

How it helps:
Unblocks clogged injectors in just one tank
Specifically designed for diesel engines
Smooths rough idle
Restores power and acceleration