ValvTect Marine Gasoline Additive is formulated to upgrade ethanol blended & conventional gasoline to ValvTect Marine Gasoline. It is specially formulated to prevent ethanol fuel related problems by controlling moisture to prevent phase separation and maintain octane rating.
* Top Tier is a performance standard for gasoline, backed by major engine makers. ... To be considered Top Tier, the gasoline must have a higher concentration of detergent added to it.