COMP-R 40 10W/40 SN ZINC ENHANCED 20L 320017Part No. 320017 Type ENGINE OIL Brand GULF WESTERN Unit of Measure EACH Description Gulf Western Comp R 40 10W 40 Zinc Enhanced Engine Oil 20L High performance engine oils developed to protect high output engines during on road as well as track usage. Compatible with all road fuels as well as common racing fuels including Avgas, Nitro methane and methanol. Exceptional engine protection from enhanced levels of zinc and moly containing anti wear