Hello! Do you have a turbo? What kind of oil did they use? VW is a German brand, it is important to remember they have higher octane gas than we get here. Use premium, it will make a difference. If you have a turbo, you need to use 5w-40. Liquid molly. Yes it's thicker than most cars take. Because of the higher octane fuel, the engine runs hotter. It's not uncommon for our car (2015 1.8 turbo) to go though a quart a month and it's at 110,000 miles. Be sure to use PINK coolant. Also, you have a crush ring oil plug gasket. If they reused the old one it's possible that it's not tight enough and leaked. Have you noticed any oil stains under your car? Best of luck.