My car keeps losing a major amount of oil and has been doing that before the correct date or miles is due for a new oil change and then my car makes a funny noise. It has issues when I accelerate, it langs, it takes longer to get up to speed and the shifting sometimes is loud and behind, my rpm goes really high and I’m going no where at times. My air conditioner also makes a really bad humming sound on when turned up. Not exactly sure on date when started honestly. It’s been some months now.