my car runs so fn heavy
 

I don't know what it is but my car runs so heavy that I'm honestly tired of driving. It's not fun at all to drive a beautiful powerful car as it was the first few weeks I got it.

How I know its running heavy is that yesterday I took my car to dealer for few warranty works and they gave me a loaned that is very much the exact car as mine. I drove it about 150 miles I'm town in one day and I enjoyed every minute of it. The loaner had the same mileage as mine and is the same year but has been abused like no other.
my concern is that, I take care of my car so much including regular oil changes, new tires, and all of the latest TSBs yet it still rides like a tank. I can't drive faster that 65mph on the freeway cuz I feel like I'm doing 100+mph. It sucks so bad.

It's a 2010 with 20,000 miles and only things I have done to maintaince is oil change and oil filter change. Also I have upgraded my rims to sport 19s with 245/45/19 front and 275/40/19 rear.

Can you guys shine a light on my and help me lighten up my car again.

I honestly think its all in your head lol. Dont see a reason why yours would be different than the loaner car they gave you

Woh the fastest reply ever.

I know it runs heavy is because I'm always the last of the start when in red lights. The car just does not pick up speed the engine is so much louder than the loaner. I use Mobil1 full synthetic. Probably the oil.

I'm on M1 (w/M1 filters) and mine's running better than it ever has (at 27k miles). Why do you think it's the oil? It sounds like something just isn't right like a fouled plug or something rather significant. You should have the dealer give it a good check.

Whats your tranny? and the delaer loaners tranny?

They are both auto. The funny thing is that when I first took my car for the first oil change, 3750 miles, they gave me the same loaner and was like wtf, it rode like sh!t and I couldn't wait to get mine back. But this time, it was totally the opposite story. How I know its the same car, is that I had saved the receipt you get and its the same VIN

My first oil change, it was a different story. My whole car woke up with M1 oil but now not so much.

No im saying like 5at or 7at?

the 5at tranny was the best. the new 7 speeds suck.

Both 7at, 2010, 20k miles

Take it to the dealer and see what they have to say about it. Maybe your airbox needs to be cleaned?

I bet if you abuse your car like no other, your car would drive just like the loaner.

I've been stepping on it every time even after ecu reset but no go. I'm so much happier when I drive my 93 camry. How can I clean the airbox

Even in manual mode it drives like a tank.

Yeah, put it in DS or M mode and drive it like you stole it. It'll come back :)

I also think the bigger tires and wheels you have make the car feel heavy. Especially when you up-size the tires. Do you happen to know how much your tires weight?