Join Date: Apr 2012
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Fuel consumption suddenly gone higher
I have a 2009 I have only owned since March. I was getting average MPG at about 24 mixed highway/city driving. Can't possibly complain. I took it on a road trip and got 29MPG on a 7 hour drive. Thrilled. I had a pathfinder before this, LOVED the car, hated the fuel economy.
Suddenly, I am getting 19mpg driving the same route to work/home. The car doesn't sound strange, feel different. I am at 39,700 miles. The only things I can think of are the drop in outside temperature (I live in upstate NY) or maybe the tires? I had the tire pressure monitor go off a few weeks ago. One was at 23 psi, I was shocked, it didn't look flat. I re-inflated, initially it dropped again then has been holding air. I was going to go have them look for a slow leak, but since it hasn't dropped again I never bothered.
Could it be the tires? Is there another cause I should take it to the stealership for? I got the extended Jerry Warranty...because at that price who could refuse? So if it is something covered, that would be great.
It has the original Yokohama tires that came with it. There is still ok tread on them but know I'll need to replace them. Been trying to figure out best tire, if I should keep these as a "summer" tire and get a more aggressive for winter now. So, I've been procrastinating replacing them.
What could be causing my sudden drop in fuel economy?