Thanks for the question Rick. Though we recommend adding Sea Foam toward the end of the oil interval, it can be left in motor oil for the duration of the interval. It’s made form 100% petroleum and cannot possibly cause harm when mixed with crankcase (or fuel).
wpDiscuz
Our use of cookies
We use necessary cookies to make our site work. We'd also like to set analytics cookies that help us make improvements by measuring how you use the site. These will be set only if you accept.
Based on your browser's "Do Not Track" or "Global Privacy Control" settings we have automatically rejected analytics cookies for you.
Necessary Cookies
Necessary cookies enable core functionality. The website cannot function properly without these cookies, and can only be disabled by changing your browser preferences.
Analytics Cookies
We use Google Analytics cookies to help us improve our website by collecting and reporting information on how you use it. The cookies collect information in a way that does not directly identify anyone.
Thanks for the question Rick. Though we recommend adding Sea Foam toward the end of the oil interval, it can be left in motor oil for the duration of the interval. It’s made form 100% petroleum and cannot possibly cause harm when mixed with crankcase (or fuel).