I need an advise from experts. I own Steermatic 2007 Petrol. I bought this car a year ago and at that time it had 38k mileage. Car was in excellent condition, same as new. There wasn't any single issue with it. After 44k mileage some of my friends advised me to change gear oil and have its tuning. Well this was a mistake I did, after tuning I found issues with it.
First of all I noticed immense decline in acceleration, it don't accelerate the way it used to
When you slow down the car, lets say below 1000 rpm, for a second it move up rpm to 2000 and then become stable
Mileage isn't good anymore as I used to get 15-16km / L on long drive and 11km / L within city
There is an issue with gears, when I use reverse gear, it takes RPM over 2000 and I also notice Jerk when change it normal or when change from Normal to reverse
Other than above issues, I also have one quite annoying issue which is related to alignment. I couldn't find a single alignment expert who can fix my problem. On motorway when I go over 90km, I feel like car is floating in the air, means no control over it. It moves both ways. Also steering is very hard now.
I want someone to help me with above issues as I do like to keep my car 100% in terms of performance and maintenance. If someone can advise me alignment expert and mechanic, I would really appreciate it.
I've tried few including Honda authorized workshops, but in vain.