Driven HR5 10W-40 Engine Oil with ZDDP ZincDriven racing oils HR5 10W 40 conventional oil. HR5 is an advanced petroleum engine oil that has been formulated to provide maximum protection and performance in classic engines. Excellent oil for your vintage car with the proper amount of fast burn ZDDP (zinc and phosphorus ) to ensure your engine has critical anti wear protection. HR oil also incorporates U. S. military spec rust and corrosion inhibitors to provide unmatched engine protection during