Jza

Car is a 2003 Honda Civic Si with approximately 65000km on it. Full synthetic oil was put in 5000km ago, all air filters where also changed at this time.

I'm getting maybe 400km a tank, should be getting 200km more, could it be anything else than the fact I need an oil change?

JeDiHybrid

check your tire pressure with temp changes, but yeah it may more than likely be your need for an oil change or check your filter...

Jza

oil filter and oil are to be changed sometime this week. Tires are new, just had them put on for winter.

pizzapizza

it could be just winter gas and more idling during the winter.

during the summer i can get about 550 km per tank 70% hw/30% city using summer gas. in the winter when they switch to winter gas with more lighter formulation, i get about 450 to 480 km per tank with the same ration of hw/city driving. but i do idle more cause of startup and winter traffic. i noticed this last year and i'm getting the same effect this year too. i'm driving a 2002 civic lx autobox.

Jza

thanks man, good info.