I have Mehran 2006 Model and I take care of my car and satisfied with its performance but from last two month
I observed its performance is descrease, feeling like less powered and car is feeling Heavy while driving,
engine take load, for example, previously i'll change 4rth gear at 70 kmph but its it too hard to push and @55-60 its bahaving same as it was behaving 2 month back on @70 speed.
what should i do?
Engine Weak?
or Should I change PLugs, Engine Oil, Air Filter, Oil Filter, Tappet Adj, Tunning,?
Coil is changed 5 6 month back with plugs change, Normal Engine, air, oil filter a due in 1000 Km,
Last month Srviced Raidiator and use OSAKA Coolent, but now car heating in peak hours on 2 person on board, When fan is direct then niddle of mehran's at 90 angle and 50% of total guage but now my car niddle angle is 100+ and it getting heated toward 70%, even Fan is Direct
Performance is much different On CNG while of patrol difference is less,
plz advice me