STP Pro-Series Intake Valve Cleaner, 14 oz

For my direct injection truck, STP Pro Series Intake Cleaner is a maintenance must-have. Direct injection engines notoriously build carbon on intake valves, leading to rough idle, power loss, and poor fuel economy. I use it every 10,000-mile oil change. The process is simple: * Prep: Warm engine, turn off, ensure ventilation and safety gear. * Access: Expose throttle body by loosening air intake boot. * Connect: Hang the cleaner's hose from the hood, insert past the throttle plate, and re-secure the boot. * Apply: Turn the cleaner to "on." Start engine, hold 2-3 times idle RPMs for 9 minutes while it dispenses. * Post-Clean: Turn off, remove hose, reattach boot. Drive for 10-15 minutes to clear residue. I consistently notice smoother idle and better acceleration after each treatment. It proactively prevents more costly carbon cleaning. For ease of use and tangible benefits, STP Pro Series is a reliable choice for direct injection engine care.

It was easy to use by 1 person