Does Seafoam Actually Work in a Car? (with Proof)
In this video I test Seafoam in a Honda Civic Si. I use a mini borescope camera to look into the engine and see how dirty the engine is before the fuel treatment and then after the fuel treatment.
I followed the instructions on the container and seafoam did a great job cleaning a good amount of…
Source: ChrisFix (2021-02-01)