I always wondered about that but I'm too cheap and too chicken to test that. The roads I travel have no cell service and it could be several hours before someone happened by to get help. I have gone half again the recommended amount on bikes I was unsure of their maintenance but stayed fairly close to home during those times. So good to know it does no harm except wallet. I'm sure others will like knowing that as well.:thumbsup:I have two bikes, both fuel injected. During times when both bikes are seeing regular use, like now, I focus on keeping their tanks full to prevent condensation build-up in the tanks, and I'll add a shot of Sea Foam every couple of weeks just to keep things clean. In periods of low use, I not only keep the tanks full but add the recommended 1 oz. of Sea Foam per gallon at fill-up and run them enough before storage so the SF gets distributed thru the system. Both bikes are rated for use with regular gas with up to 10% ethanol, and that's what I put in them 95% of the time. And about 100 miles before each oil/filter change I will add the recommended 1 oz. per quart of SF to the crankcase oil, which helps loosen up any crud build-up and keeps things nice and free-flowing there, too.
According to the company, Sea Foam is perfectly safe for fuel, lubrication systems, and catalytic converters, and there's no such thing as adding too much -- just no real added benefit over the prescribed dosage.
As others have noted, it is a good product BUT... so is Marvel Mystery Oil and it is a bit cheaper.What are your thoughts on using Sea Foam when filling up gas tank?
I prefer to put it in when the tank is between half to 3/4 full and then fill up right afterwards. I don't think it really matters but I like knowing for sure that it's getting "mixed in" with the rest of the gas in the tank.My next question is, do you guys fill up your tank and then put the Sea Foam in?
Do you let it sit for a little while or just go out and ride? What is your usual process?
