Seafoam Spray Meets Engine With Over 300,000 Miles!!! Holy Smokes, Batman!

My daily driver, a 1992 Saturn SL2 that i have owned for over 13 years. Using Seafoam Spray to clean the throttle plate, intake manifold, intake valves and combustion chamber on this old engine.

In the 13 years i have owned this car, it will occasionally start to feel a little weak in the mid-range RPMs. When it does, i know it's time to clean the upper engine and intake. I have used brake clean shooting in the PCV hole many times, using my thumb to prevent vacuum leaks, and it works great, but this is a better way. This will also help if you have a stuck throttle plate.

Though not necessary with an upper engine cleaning on most cars, this engine is well worn, including the piston rings, so i will be changing the oil soon after the filming of this video.