Kendall® GT-1 Competition Motor Oil (Formerly: Kendall GT-1 High Performance) is a high quality, conventional racing performance engine oil. This product is formulated to provide excellent wear protection, to minimize the formation of sludge and varnish, and to resist viscosity and thermal breakdown, even in severe service. It is particularly recommended for use in turbocharged engines and in high-performance engines with flat-tappet camshafts, especially during the critical break-in period.