Hello dear people, I have been driving an Audi 80 B3 1.8S 66KW engine code PM and year of construction 91 for almost a year. Was up to now actually satisfied with the consumption, always had something between 7.6 and 8.3 liters. Now during the last two times it was full tanking 9.5 and 9.3 liters. Where can this come from, is it quite a jump?? Spark plugs, oil filters, oil, air filters are new so this can be excluded. Longer broken (has a small hole) is the trouser tube, but then I should have had an extra consumption before. The cooling water temperature plug sometimes shows what he wants, but that has also been before the extra consumption. At the track profile or driving mode nothing has changed either. Hope you can help me!