I saw a video from the Sea Foam official channel on YouTube that shows to add 2 whole cans to 1/8 of a tank, then spray 2 cans into air intake. It was also mentioned I should drive 20 miles… so just wondering if I should put the treatment in the fuel, then spray into the intake? Or drive the 20 miles and then spray into the intake? Also, is 2 cans of each excessive and could it do damage? I have a 20 gallon tank, so 1/8 of a tank is about 2.5 gallons. Does Sea Foam act as fuel when that much is put in? I’m just thinking I might not make it 20 miles on 2.5 gallons in my big v8 that isn’t getting good gas mileage.