Thanks brother for your points.I am much thankful to you.
1.Can you please guide me where is the location of timing belt(is is same like fan belt?) i changed fan belt at odometer @ 50K but it is still in good condition so i did not changed or oiled it, i checked all belts & apparently all r noiseless & good shiny
2.Fuel filter was replaced 5 years ago with honda oem during tuning,after that all is smooth
3.from 2006 original spark plugs are in the car .at 80K during tuning, mechanic recleaned & adjust spacing gap(BUT IT IS STILL GOOD & CAR SPARKING STARTING AT 1ST ignition/CRANK WITHOUT ANY DELAY)
4.Radiator water i replace after every 6 months so i changed it 4 months ago,This time instead of coolant mechanic put ordinary water but it is full yet without loss of single drop of water in radiator from 4 months( although my car always starts with a/c always on
At 100K service, except point 1 rest 3 points were checked by mechanics & they told when everything is smooth ok, running dont bother to disturb any unnecessary thing so i didnot do points 2,3,4 which u mentioned
so i rely on them & by grace of allah all is well yet,Even at 100 K at odometer i admit myself that it is not excellent mantained as it should be & could be but better than average maintained & it is still giving water from silencer.not a pinch of smoke ever,not eat/drink/loss single drop of engine oil from engine, not eat/drink/loss single drop of ordinary water from Radiator
Mielage: 15 Km/Litre of Petrol with A/C on Karachi broken & crowdy roads at average speed
same: 15 Km/Kg of CNG with A/C on Karachi broken & crowdy roads at average speed
kindly suggest what to do now