No
Below is what STP claims their tratment does, no where doses it make claims to be a stabilizer. I would look for something else to use for that purpose.STP® Diesel Fuel Treatment & Injector Cleaner helps: Save fuel by keeping injectors clean Maintain performance by preventing deposit build-up, corrosion and rust Fight fuel line freeze and wax gel formation.Check with you favorite marine store, I'm sure they will have what you need.