Posted in Web 2500 AV’s, How Much Oil Do You Use? – Chevy Avalanche Fan Club of North … November 5, 2024 Changed to Mobil 1 @ 10000 mi., 5w30 have 26000 mi now and I use about one quart between changes or a quart per 2500 mi. has been very consistent after first oil changes which were too close together 1500-2000 miles to even add a quart. https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/2500-avs-how-much-oil-do-you-use.4589/