Suzuki DF300B DF350A Service Kit - 10W40 Ecstar Oil - 2017 to Current. Complete OEM Service Kit Includes Oil, Gear Lube, and Service Kit 17400-98873 Designed for Suzuki DF300B and DF350A Outboards. The Suzuki DF300B DF350A Service Kit delivers all the essential fluids and components to properly maintain your 2017 and newer DF300B and DF350A V6 four-stroke outboards. Each kit includes 2 gallons of Suzuki Ecstar 10W40 marine oil, 1 additional quart of oil, 3 quarts of Suzuki gear lube, and the gen