I’ve just done an oil and filter change on my Yeti using just an electric pump designed for the purpose.   Normally I use the pump then drain the leftover from the sump plug. Pressure of time and weather on this occasion necessitated using just the pump.   The engine capacity on my Yeti 170 is stated as being 4.9 litres. I only managed to get 3 out!   The oil was warm (c.40-50 degrees) and I used the dipstick tube and tried both the filter housing and oil filler to