Why consuming more gas ? Help Please
 

Hey guys! I own a 2003 Honda Accord V6 Couple with 180,000KM on it. I have noticed the past month that my car has been consuming a lot more gas than usual and has a bit of a shake when the car is at idle (only in park position can’t feel it a drive gear)
Car had a full tune up done at 165,000KM (NGK spark plugs, filters, Timing belt, water pump, coolant flush)
Had the Transmission rebuilt at 175,000KM (Not a good 2 months, hear this is a common occurrence)
Someone at work told me to see to check my O2 sensor? I have no Check engine light on my dash. Only light is that stupid low washer fluid light that just won’t go away hahah

Any suggestions?

Your O2 could be going bad without a check engine light on, generally if it's bad enough to cause a rough idle you should have some sort of light on. The shaking could just be bad engine/trans mounts. The O2 sesnsor should be checked manually for voltage readings. If you're not too familair with this type of work I would reccomend paying 100 bucks to have a shop diagnose the problem for you.

Also check fuel lines for leaks. We've seen a few cases of fuel lines leaking due to road salt corrosion.

good luck