Is combustion cleaning related to low compression on a cylinder?

Roy,

I am the 2nd owner of the vehicle listed above Sport, one day check engine light when on, I decided to check the oil level and my car was empty. The oil light didn't turn on, but my car was burning the oil, the smell and there were no stains of oil on the ground. I took it to the dealership, started an oil consumption test, it didn't pass so they did a combustion cleaning. Drove for another 1,000 miles and everything was fine, 7 days after that final check while driving back from work I noticed I was pressing the gas pedal and the car wasn't going up at speed, a few minutes later it started misfiring. I took it back to the dealership and they told me I need a new engine, I don't have any warranty on it, the second cylinder has low compression, it isn't the bearing rod and I have to pay for the new engine. I went and talked in person, the manager told me the combustion cleaning doesn't have to do anything with the cylinder and in order to tell me what's wrong with it, especially they would have to tear the motor apart, which I would also have to pay. Also, she said the combustion cleaning they did was under good will.

Is there any information you might know? Could the low compression be related to the cleaning they did? They did the cleaning on Nov 12, 1,000miles check on Dic 17 (which didn't even have the full 1,000 miles when I thought it did) and then on Dic 23 I have the misfire.

Hopefully you get to read this and have some information.

Kimberly