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  1. 3rd Generation Optima (2011 - 2015)
    Hello, Some said filling up full all the time will get lower fuel economy due to no space for evaporation (EVAP systems) to work? And also car is heavier with full tank and engine has to work harder, so that we get lower fuel economy? Are they true? Just wondering if you fill up to full all...
  2. 3rd Generation Optima (2011 - 2015)
    I've had my 2015 EX for about 14 months, consistently gotten around 430 miles on my DTE reading after a full fill up...Topped of this week with a couple of gallons (gas shortage here in Atlanta), checked the DTE, it was only 325! Is this a sensing problem or is there a behind-the-scenes...
  3. The Service Center
    Hi, Any ideas what might be causing the car to no longer reset the average MPG value when I refill with gas? Is there an electronic signal generated or picked up by the car somewhere? I went through the dash menu to make sure the setting was on automatic reset. I even changed it to manual...
  4. Engine and Technical Discussion
    This is the second time Ive heard this from an old time mechanic. Add 1Qt of trans fluid to every 7th tank of gas. This is supposed to clean youre injectors and any carbon gunked up? Anybody else hear of this???
  5. 3rd Generation Optima (2011 - 2015)
    I have a 2011 ex turbo only changes are window tint and led license plate lights I have 200$ to spend I should ______!!
  6. Engine and Technical Discussion
    I went into the Chatham Ontario dealership today for a tranny drain and fill. I asked and was shown by the tech the locstion of the fill bolt, drain bolt and the bolt to check level. You check the level just like a manual tranny. I think I got a good deal. The entire bill was $109.00...
  7. 3rd Generation Optima (2011 - 2015)
    In another thread, we were discussing transmission fluid flush intervals. Seems Kia says lifetime (meaning 100k) and sort of also says 60k. In either case, I know that fresh fluid is always a good thing. Rather than a full flush of the transmission fluid by having the dealer use their...
  8. Interior and Exterior Modifications
  9. Wheels, Tires and Suspension
    Mine came with nitrogen filled tires and I'm wondering where the **** would I find a nitrogen fill station?.. Are they only at the dealerships? What do you fill your tires with?
  10. 3rd Generation Optima (2011 - 2015)
    Although I've already purchased my Optima and made decisions about the "extras," I'm curious what others see as reasonable/fair prices for the dealer add-ons. Might be a good guide for prospective buyers to have a one-stop thread. I understand that many people see the extras as nothing more...
  11. Hybrids
    It seems the marking are strange -- to me. The gauge is Marked H and L. Why not F and E like the gas gauge? The battery is full or empty. Anway, prior to a day trip to Sedona the other day the highest I had ever seen the battery gauge was one ( 1 ) blip above 3/4. After going down a long...
  12. Wheels, Tires and Suspension
    i keep hearing about people putting nitrogen in their car and how its a million times better than regular air that you get at the gas station. i was wondering is it worth the $20/avg that shops charge to fill up your tires?
1-12 of 12 Results