It never has been the most powerful car, especially on hills or when fully loaded. But it has gotten much worse. First noticed an oil leak which I now believe was from a severely cut flame trap hose (have replaced hose). At the same time I noticed the oil, the car started operating sluggish when cold. At first when going up hills, I could shift from drive to 2nd gear which did the trick. But now even when shifting to 1st gear, it won't accelerate up hills. Air filter is fairly clean. Tried to replace gas filter but need a pit or lift. Also bought new spark plugs but need torque wrench. Will take care of these things as soon as I can get to a shop. Does anyone have any other ideas? I'm in England with only one Volvo dealer near me but could be pricey. I'd like to do what I can first. Thanks in advance. David