Its winter.. lower mpg expected ?

[josh_419]

I have been getting around 5mpg less on my same trip to work every day now its getting colder.
Diesel being a heat engine and taking in cold air reducing mpg at all ?
Its a rumor, correct me!

And no, i dont have a pair of different shoes (heavier ones..)

[Agreeable Slick]

Cold Mornings make it work harder. Simples.

[player.777]

yes it is a sad state of affairs! 

[asif]

Mine don't really change much to be honest, maybe cuz mine is sh*t all year round 
 
Dunno why i'm  as most of the time it's got me 

[DON_GEOVANI]

suffering the same unfortunately, especially early mornings

[Adam]

Once it has fully warmed up mine hasn't changed.

[blujedi]

i drive a gt tdi and also have been feelin like my mpg has dropped. but i think it is those shorter journeys, especially when the car doesnt get channce to warm up.

i looked in the vw manual in the glove box and it says that your fuel consumption is double until the cat is up to temperature and it takes approximately 4 km of driving to warm it up.

perhaps its just taking longer to get the temperature in the cat. since reading that i never accelerate hard until i can see the water temp gauge start to move. and it doesnt budge for longer during these cold morning we have been getting.

take alook in your manula, im sure you'll read the same. look under mpg or emissions.

[BJD]

i drive a gt tdi and also have been feelin like my mpg has dropped. but i think it is those shorter journeys, especially when the car doesnt get channce to warm up.

i looked in the vw manual in the glove box and it says that your fuel consumption is double until the cat is up to temperature and it takes approximately 4 km of driving to warm it up.

perhaps its just taking longer to get the temperature in the cat. since reading that i never accelerate hard until i can see the water temp gauge start to move. and it doesnt budge for longer during these cold morning we have been getting.

take alook in your manula, im sure you'll read the same. look under mpg or emissions.

So what happens if you have a de-cat. I don't; im jut wondering if that changes your MPG?

[Adam]

i drive a gt tdi and also have been feelin like my mpg has dropped. but i think it is those shorter journeys, especially when the car doesnt get channce to warm up.

i looked in the vw manual in the glove box and it says that your fuel consumption is double until the cat is up to temperature and it takes approximately 4 km of driving to warm it up.

perhaps its just taking longer to get the temperature in the cat. since reading that i never accelerate hard until i can see the water temp gauge start to move. and it doesnt budge for longer during these cold morning we have been getting.

take alook in your manula, im sure you'll read the same. look under mpg or emissions.

So what happens if you have a de-cat. I don't; im jut wondering if that changes your MPG?

I'm 90% I witnessed better MPG after a de cat.

[asif]

Supposed to b one of the benefits of a de-cat, better flow so better power = better fuel economy depending on your driving style.