Seafoam in gas - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 47 (permalink) Old 02-02-2018, 07:17 AM Thread Starter
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Seafoam in gas

How well does seafoam work in gas on the V engines? Anyone notice any difference in the way it runs or is this stuff not recommended?
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post #2 of 47 (permalink) Old 02-02-2018, 07:48 AM
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Some folks swear by it. Me personally I see no difference running with or without it. I do however make sure there is plenty in the fuel before winter storage. I think it's more of an occasional cleaner than an everyday use kind of thing.

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post #3 of 47 (permalink) Old 02-02-2018, 08:03 AM
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I put one ounce per gallon in my VS650 when I know it will not be ridden for a month or more, usually this is only during the winter.

I also use it like carb/injector clearer on any motor vehicle or the lawn mower when they seem to be not running right. Since it has a shelf life of about one year, and the Vstar only needs 4 ounces out of the 16 ounce bottle, it gets used up in one vehicle or the other within a year.

I get the sense my bike in the spring seems a bit off on that tank of gas with the seafoam from last december. It does keep the gas from degrading, but Im not sure if it also throws the engine or ECM off just a bit when you use it. Even with a fuel stabilizer old gas is still old gas.

I have also put it in the crankcase about 500 miles before an oil change a few times, once on my Vstar, and once in a car that burns a lot of oil. Dont know if that accomplished anything.

I have never heard of seafoam harming anything.
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post #4 of 47 (permalink) Old 02-02-2018, 09:19 AM
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What Summer said.

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post #5 of 47 (permalink) Old 02-02-2018, 09:33 AM
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Quote:
Originally Posted by KCW View Post
I put one ounce per gallon in my VS650 when I know it will not be ridden for a month or more, usually this is only during the winter.

I also use it like carb/injector clearer on any motor vehicle or the lawn mower when they seem to be not running right. Since it has a shelf life of about one year, and the Vstar only needs 4 ounces out of the 16 ounce bottle, it gets used up in one vehicle or the other within a year.

I get the sense my bike in the spring seems a bit off on that tank of gas with the seafoam from last december. It does keep the gas from degrading, but Im not sure if it also throws the engine or ECM off just a bit when you use it. Even with a fuel stabilizer old gas is still old gas.

I have also put it in the crankcase about 500 miles before an oil change a few times, once on my Vstar, and once in a car that burns a lot of oil. Dont know if that accomplished anything.

I have never heard of seafoam harming anything.
The problem with seafoam is it will phase separate. You noticed an issue after it sat up. What I recommend is "stirring the tank" when it is going to sit up. How ever you want to do that is up to you. I am lucky enough that my stuff does not sit long so I only have to use a FI cleaner as a cleaner not as a fuel stabilizer. What I do recommend since it does not separate when mixed properly is BG Products. I use it in every vehicle I own. The local rep has proven to me it does not phase separate and sea foam will. We mixed both per recommendation in my shop in glass jars and I set them on my counter and did not touch them for 2 months. The sea foam started to separate within a day (hours actually) and the BG did not over 2 months. Sea foam is a GREAT product and I have used it. I am not slamming it. I am just giving my experience.

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post #6 of 47 (permalink) Old 02-02-2018, 10:52 AM
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NGM - that brings back memories

when I was a kid my father put antifreeze in his car, and then put a bit of the mixture in a little glass Bayer Childrens aspirin bottle, and hung it from the hook on the garage for the clothes line.

Not sure exactly what he was thinking, maybe if it got cold enough at night the bottle would break, and he would then know his engine block was cracked?!

Since aspirin bottles did not have child proof caps in the '60s, and antifreeze is deadly poisonous, it was probably not a good idea....
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post #7 of 47 (permalink) Old 02-02-2018, 05:56 PM Thread Starter
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I probably won't use it in my oil but not knowing the history of this bike, I am sure nothing has been done cleaning wise.
I added 5 ounces to a full tank of ethanol free gasoline and rode to work today being it was in the 40s today.(35 this morning)
Was not having any issues but figured could not hurt giving jets and venturis a cleaning.
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post #8 of 47 (permalink) Old 02-03-2018, 04:15 PM Thread Starter
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Well after running 2 gallons of the treated fuel that I can definitely confirm that the foam of the sea smoothed out my idle. Before it was a little jinky going up and down at certain times.
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post #9 of 47 (permalink) Old 02-03-2018, 07:12 PM
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One thing all good fuel cleaning products do is to dissipate water in the fuel. Here in Houston we have extremely high humidity which condensates in the underground tanks. Then it finds it way into our gas tanks. The water forms rust in your tank and engine will miss trying to fire on gas mixed with water. I average at least 1250 miles a month, about 8 tanks every month, so the odds are I'm getting a lot of moisture in my tank. Since I've started using a fuel treatment about twice a month it keeps everything in great shape. I used to fight poor runnability issue all the time until I stated regularly using fuel treatment. No I don't run cheap gas, major brand from busy stations. Any way, that's my 2 cents.

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Last edited by lesblank; 02-17-2018 at 04:13 PM.
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post #10 of 47 (permalink) Old 02-03-2018, 07:51 PM
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I run a seafoam-laced tank through mid-season every year.

Don't really see a difference, but feel it's a big reason why my bike runs like a top year in and out with only basic maintenance.

For winter-storage I used sta-bil, but also think the key effect is the same (i.e. kill off moisture)

Casey

PS - Your bike is not as nice as you think and you're asking too much for it... Sorry, just had to throw that in since it seems to have become my 'rep' of late...

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