Totally restored 1979 Toyota Land Cruiser. Only has 520 miles on this 4bt cummins engine. Garaged and driven weekly for maintenance. Cummins success in the marine market began right at the start. The first successful engine they ever designed was for boats, and they didn't stop there. In fact, more than half of the company's total engine production between 1919 and 1934 was built for marine applications.Its in the cards discovering the periodic law post lab answers