Quick seafoam question
put it in the gas on a full tank and run till your dummy light comes on... it's fine to spread that over DD'ing the car... however long it takes in the gas doesn't change anything.
no, it doesn't smoke from oil/gas treatment.
Seafoam in the gas is just like any other gas treatment. Add it to a full tank, and it's best to run the tank low before adding new gas again because that will just dilute out the Seafoam. But it doesn't matter how long it takes to run out that tank of gas.
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