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  1. 3rd Generation Optima (2011 - 2015)
    Does anyone here know *officially* approximately how much fuel is (supposed to be) remaining once the low fuel light/warning comes on? I ask because IMHO I think Kia programmed it to be a bit conservative as to how much fuel is remaining once the warning appears--in my case, the low fuel light...
  2. Hybrids
    Hi So I was wondering the other day I’m filling up and I was wondering way did it take so much time for the door to open. Vs my old hybrid only So I checked in the manual and it says the gas tank is pressurized I could take a bit of time to open it’s only 3 seconds or so but I was just...
  3. 3rd Generation Optima (2011 - 2015)
    Contrary to what I have read online, the Optima SX appears to only have a 15 gallon gasoline tank. I discovered this 2 days ago when I went to Costco to "fillerup". Checking my trip computer, I had roughly 40 miles for Range, and the orange indicator was on for low gasoline level. I bought...
  4. 4th Generation Optima (2016 - 2020)
    So filled up my gas tank tonight, Now I have been told NOT to top off, but tonight I did, just to see how much I could get in there. I got back in and the "range" was 517 miles!Anyone else ever seen that? Why should you not top off your tank? Just curious random questions. Woody
  5. 3rd Generation Optima (2011 - 2015)
    I'm pretty sure the '16 Optima SX comes with an 18 gallon fuel tank, but my instrument panel tells me there are only 40 miles before empty and when I fill up it will only take 13 gallons. By my crazy calculations doesn't that mean there is another 5 gallons in the tank. That seems like a lot of...
  6. Hybrids
    Today I decided to see how low I could get the tank, got down to 12 miles remaining when the "refuel now" light come on. My driving range was 587 miles, pump clicked off at 14.2, did the math and it came out to 41.3 for the tank, gauge was showing 39.8. Then it hit me, "I wonder how much this...
  7. Engine and Technical Discussion
    My experiment is done, not to be repeated. I increased levels of Ethanol on a whim after watching the movie 'Pump'. Finally, at 60% ethanol, on a Utune chip nonetheless, my SX-T Optima lit up the CEL and it could not be removed with my ELM scan tool despite knowing how to do this on other...
  8. Hybrids
    So the official word is that the Hybrid has a 17.2 gallon gas tank, but I see people saying they are filling it up with like 20 gallons or more. What gives? Pretty confused.
  9. 3rd Generation Optima (2011 - 2015)
    Hey all. Went to Atlanta and back this weekend (some of you know why ;) ) and the journey was a total of 1200 miles. Hit the 44444 mile mark and then some hitting just over 45500 today. Well on the way down I did 534 miles on the tank. Total trip was 580 so i was darn close to going from DC to...
  10. 3rd Generation Optima (2011 - 2015)
    Hi Optima Forums members, I'm a member of the Hyundai Think Tank where I have the chance to give my input on a variety of topics in surveys, discussion boards and quick polls as well as participate in live chat sessions with various members of the Hyundai team including, the Hyundai Motor...
  11. 3rd Generation Optima (2011 - 2015)
    Hi, In my car I always keep no less 1/2 tank of gas then I would fill up all year round. In summer I'd go as low as 1/4 tank left if I have to go under 1/2. With my 1st car (bought 2 years ago) I've been cycling my gas tank ..... Before (end/mid-nov) and After (~starting of april) winter I...
  12. 3rd Generation Optima (2011 - 2015)
    Never thought I'd notice a big difference, but our full 18.5-ish gallon tank really adds some drag. Had it at a little over 1/4 tank when i drove the 130 miles home from my parents place after the holiday, and got 37mpg average. Usually would only get about 32-35 on a relatively full tank. Also...
  13. Hybrids
    hey guys and gals. we got about 1200 miles on our hybrid now. and the deal told us that we should get about 700 miles to the tank. is this possible? the most we have seen is 589. we are averaging 37mpg. which is great. just not sure how 700 miles to the tank is possible. thx brett
  14. Engine and Technical Discussion
    When I went to get gas yesterday, the pump kept turning off. The attendent said it was because there is air in my tank. How do we fix this on our Optimas? I thought that there was a vent that lets air out as gas is pumped in?
  15. 3rd Generation Optima (2011 - 2015)
    I got a titanium 2012 and I noticed that the gas tank cover door has a ripple effect on the paint.. almost like it was repainted since coming from the factory. I have about 4K miles on it.. I wanted to know if anyone else has this issue? I would think that due to the age of the car and it...
  16. 3rd Generation Optima (2011 - 2015)
    Hello guys. So I went to Costco a few days ago to fill her up as she was empty. I pull the trigger as hard as I can and the trigger clicks as if the tank was full already. So I was like ok, what the heck. So I tried again and it probably filled up about a gallon or so and clicks off again. The...
  17. 3rd Generation Optima (2011 - 2015)
    One of the local TV stations runs a segment every once in a while. A day trip you can go somewhere that only uses one tank of gas. Now that I have the hybrid, that makes it a wider circle. If you were to take a day trip somewhere, and only use 1 tank of gas, where would you go? For me...
  18. 3rd Generation Optima (2011 - 2015)
    I know gas mileage has been discussed a number of times here, but I couldn't really find a thread where people have discussed total mileage on a full tank, instead of MPG or KMPL. If there is one please direct me there with the thread link, if there isn't then can you please post figures. I...
  19. 3rd Generation Optima (2011 - 2015)
    So my mpg is bad and I am annoyed with it but I'm hoping that it will get better. I've heard you need to drive a few thousand miles before it's broken in but that wasn't the case with my brand new Altima when I got it in 2007. It had great mpg right away for the most part. I'm keeping a log...
  20. Engine and Technical Discussion
    The gas tank is suppossed to be 18.5 gallons right? If so why can't I only get about 15.5 on fill ups? Does anyone know how many average miles you should have left when the empty light comes ano and starts to blink? Thanks
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