Hi, '92 Sentra XE, the engine is in great shape after 150k mi (pulls OK, burns almost no oil etc.) I noticed, that in cold weather (around freezing point) there's a huge increase in fuel consumption. I know that it is normal for a certain extent, but I think this is over it. On long trips of interstate traffic (several hours 75-85mph) normally it goes at 34-37 mpg (which is quite good, I think), but when it's cold out there, it goes down to 25-27 mpg (same interstate traffic). The cooling system is OK, after the car warms up, the thermometer needle stucks to the middle. The only difference is that I use the heater. Do you think this is normal ? What should I check ? O2 sensor ? I checked out couple of weeks ago (in warm weather) and it tested OK. Is it possible that the A/C kicks in even when I heat the car ? How can I (simply) check that ? Any other ideas ? Thank you, Tivadar +----------------------------------------------------------------------+ List archives ==> http://www.escribe.com/automotive/sml Have a question? Try the archives first.
