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Discussion Starter #1
Ive used Seafoam on used cars before and I know they do make a difference on older cars. But for new ones, do they actually have any real benefit? Maybe something like preventing gunk from building up?
 

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its only used to clean up gunk. if anything you can probably use it after 1000 miles after you break in the engine just to clean up any gunk there caused by the break-in period.
 

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So it just cleans up the dirty engine. Sounds like its only good on higher mileage engine. That explains all the smoke I see in the Seafoam videos on youtube.
 

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Discussion Starter #5
Thanks for all the info. I guess I'll just stick to using it on higher mileage vehicles. I just enjoy watching the smoke show that you get when you use it. Hahahahaha.
 

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Seafoam is used to clean the fuel system when added to the fuel system.
I use it on my 94 Honda Magna Motorcycle once a year to keep the carbs clean. I also use Techron as well. I would not use any of these products on a modern engine using direct injection. I would worry about it causing damage to the injectors. I would never add anything to the oil that might thin the oil and cause problems with the valve timming control valves that could cause engine damage and void your warrenty. Just my two cents. I am a journeymen mechanic retired.
 
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