Mazda 3 skyactiv 2.2 Diesel - What are they like ? Thinking of buying? - FP : The problems are: excess fuel contaminating the sump oil during DPF regeneration, in some cases overfilling the sump. Also, there have been problems with the oil pumps. According to the trip computer on my last trip over almost 700km my consumption was 8.2 l/per 100km. Working out true consumption with my full up revealed that the Trip computer is 0.8 l/100km out. Actual consumption is around 9.0 l/100km. Currently:2013 Mazda BT-50 2.2 DC, 2003 Opel Corsa (SWAMBO), 2007 Gypsey Rhapsody. We put the Mazda 6 to the test. Mileage 5800 List price £26,795 Target Price £26,198 Price as tested £27,595 Test economy 51.6mpg Official The 2.2-litre diesel engine has plenty of poke a3LV0C.