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October 4th, 2003 07:24 PM #1
I'm wondering what could be reasons for a car's decrease in fuel efficiency?
Before, my car (1997 Nissan Sunny/Sentra), runs an average of 350-360 kms from full tank (around 33 liters) to almost empty.
Now, it's only running up to 320-330 kms at full tank. I noticed the decrease after I went for the regular oil/ oil filter change.
Any ideas?