Fuel Efficiency Degradation?

[pup2]

Anyone notice how when their cars were new parang very fuel efficient tapos as it gets older parang sumasama?

I (just) noticed this on my 2002 Civic Vti. Dati umaabot ako ng 13+ kms/liter pag mostly hiway at naka-blaze na gas. Ngayon parang hirap na ako umabot sa 11. And I think my previous cars also behaved similarly -- another civic and a lancer. Ngayon ko lang na-realize kasi medyo bigla dahil last year yakang yaka ko pa mag 12+.

Dati naman nakamana ako ng 8 year old car (colt) and while hindi siya ganun ka efficient to begin with, parang hindi ganun kalaki ang degradation after 3 years.

Ganun kaya talaga? That FC degrades on a decreasing slope as a car gets older? Sa inyo gano kalaki ang degradation as the vehicle gets older?

[ILuvDetailing]

There are a lot of factors - Maintenance, Driving Habbits, Traffic Conditions, etc.

The best thing you can do is to maintain your car religiously to maintain peak performance. Have a look at the maintenance booklet to guide you on your maintenance schedule.

[mbeige]

Wear and tear lang yan. A tune up should bring it back to spec.

You can't expect a car to maintain itself. Well, if you have a diesel, it will maintain its fuel economy to some extent too and it's mostly consistent with diesels but gas cars have a lot more things to break down that can lead to increased fuel consumption.

[EssB]

ano po ba ginawa from your last tune up?

When was the last time your valve tappets were adjusted?

[oldblue]

kapag bago ang tsikot maingat ka pa, kaya fuel efficient

kapag luma na, birit na hehehe

[d j]

...just like what everybody else recommended, a tune up.
if you haven't done so... check your air filter, spark plugs, spark plug wires, distributor cap and rotor (unless your car has DIS), O2 sensor/s, clean your injectors (fuel tank additive/fuel sys cleaner should do the trick) and maybe an oil change and a fuel filter replacement (depending on the mileage)

and refrain from flooring the throttle or eve better, tulak mo na lang j/k