You are probably right about the engine mount because the dealer told me one of the four had to be replaced when I bought the car. They replaced it. The engine had "knocking" a few weeks before I took it to the dealer when I first bought it. I think it was low on oil and had bought a quart...

Oh, I didn't know there is a difference in filters and stuff. Okay, the steering wheel shakes lightly like a vibration from when the engine starts. Then it shakes much more when I'm on the highways. I know it's the car and not the road because I drive I-280 often and know the road and pavement smoot...

How can I fixed the shaking and sluggishness? The dealer fixed the shaking after I bought the car second hand in Dec. 2007 and got an oil change from the dealer. But the dealer went out of business and I don't trust the other nearby dealers. Shaking seems to happen after an oil change, like today. J...