2005 Chevrolet Equinox Q&A

2005 Chevrolet Equinox Question: after i get in to 40mph its start shaking very hard like it loose strong

i have to put motor oil between every 3 months change because it burn it and its using a lot of gasoline, i think it most be something electronic but i am not sure -
Answer 1
any check engine lights? diagnose this first.and with the burning of oil could be a mechanical problem ring or valve train -