Valvoline, Petro-Canada, Total and Fuchs notified U.S. customers about upcoming increases in finished lubricant prices, most citing the escalating costs of materials such as base oil. Valvoline will increase prices on branded lubricant products by up to 5 percent effective Dec. 1. Petro-Canada America Lubricants Inc. will impose hikes of 28 cents per gallon or 4 cents per pound on list prices for distributors and 32 cents per gallon for certain large customers effective Dec. 1. Total Specialities USA will raise prices up to 6 percent on most branded lubricant products effective Dec. 11. Fuchs Lubricants Co. plans to raise prices by 4 to 9 percent effective Dec. 15.