Valvoline Advanced Full Synthetic 5W-20 Motor Oil - 1qt (Case of 6) (VV927-6PK) Provides excellent engine cleanliness through superior sludge and varnish protection Helps reduce engine wear at high temperatures with improved viscosity stability Provides outstanding high-temperature protection under severe driving conditions Provides superior cold-temperature protection through faster oil flow at start-up Helps improve and maintain fuel efficiency for the life of the oil (applies to 5W30 and 10W30 grades)