after servicing fuel consumption when up

[MercZai ♫ Loüis ッ]

hi , anyone encounter an increase in fuel consumption after service B? doesnt have such problem in my previous benz . recently i notice that even i drive normally the fuel consumption rate is 14-15L / 100km . where before servicing i rev it hard also not a problem.. it stays at roughly 12.2L - 13.1L / 100km . any pros can explain or tell me what might be going wrong? after service i did my normal k&n filter cleaning at mcwell ( which i always do previously so dun think is the cause) , then i change wipers ( also dun think will affect ) then i change all my 4 tyres recently . thats all .. do share if you encounter such problem.. thanks guys

[Machi]

Ur rear Tyres lah..

From 255 to 265 leh....

Or better check the Tyre pressure!

[Odessus]

I agree with machi. Likely to be your tyres. More surface area and traction so the car requires more fuel to propel...

[MercZai ♫ Loüis ッ]

ok thanks guys.. nasty tyres , too much traction also no good la =X

[GS83]

ok thanks guys.. nasty tyres , too much traction also no good la =X

downsize back loh...

[MercZai ♫ Loüis ッ]

downsize back loh...

cannot ! haha i like the looks from behind

[Angchug]

Tires n rims does affect the FC. I gave my old rims n tires(17" P7) to my friend, he was using 15". His FC gone up by 20%.

[Odessus]

Even tyre pressure affects FC... I use my FC to determine tyre pressure... LOL

[Maeryn]

Even tyre pressure affects FC... I use my FC to determine tyre pressure... LOL

How does it work? I rem slightly over inflate is good for FC right?

[Odessus]

Good for FC but not so good for traction, even wear of the tyres, and comfort. I over-inflate slightly due to compensation of hot air already in the tyres when I pump and also to decrease the regularity of pumping tyres.

[yc3333]

How does it work? I rem slightly over inflate is good for FC right?

You're right overinflating is the easiest and fastest way to improve FC. Downside is lesser traction, uneven tyre wear, and it can be dangerous if overdone.

[daffy]

Or maybe you have put on some weight? Body heavier...foot too!

[Phang]

My FC went bad after Service B (30,000km) too, without tire change.

 

I used to get about 630km when the reserve light turn on and now I think it will turn on around 500km.

 

I am still on the first full tank of fuel after Service B, will monitor for another tank before I go back to C&C again.

 

In fact, the engine stalled on the fifth day after Service B when I was leaving the car park, went back to C&C immediately but they said everything seems normal and no fault code found when they scanned.

 

I was very happy with the car and FC until I collected the car after Service B.... %%#$@$#