Torco SR-1R is an ultra-premium 100% synthetic racing oil with a
selective blend of Group III, Group IV and Group V base oils and
proprietary additive systems aimed at increasing power, efficiency and
engine protection..
All-weather viscosity grade for passenger cars and light trucks Popular in crate engines and high-performance V-8 engines Thicker oil film at operating temperature than a petroleum 10W40 Recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4..