Add the exact, correct amount of oil needed for your 2-cycle engine. Mix your 100:1, 50:1, 24:1 and 10:1 ratios quickly and precisely for optimal performance. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.