Fuel tank Size?
NEWS
 

  1. Welcome to Kia Optima Forum – General discussion forum for Kia Optima

    Welcome to Kia Optima Forum - a website dedicated to all things Kia Optima.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Kia Optima Forum today!
     
+ Reply to Thread
Results 1 to 10 of 10

Thread: Fuel tank Size?

  1. #1
    Newbie
    Join Date
    Apr 2017
    Location
    Colorado
    Posts
    5
    Year
    2016
    Make
    Optima
    Model
    Oprima SX Turbo
    Trim
    SX Turbo

    Fuel tank Size?

    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 gas to be giving me a warning for low gas.

  2. Remove Advertisements
    Optima Forums
    Advertisements
     

  3. #2
    OptimaForums Veteran Waynerm002's Avatar
    Join Date
    Feb 2013
    Location
    DC Metro
    Posts
    2,800
    Year
    2014
    Make
    KIA
    Model
    Optima
    Trim
    Hybrid
    Are you filling it to when the pump stops, if so you might try adding more until it gets up to the top. It's known that the hybrid cars hold an extra 5 gallons beyond the stated capacity, not sure about the standard car. The pump seems to click off long before I reach the rated capacity but you can continue filling.


    Sent from my iPad using Tapatalk

  4. #3
    OptimaForums Veteran
    Join Date
    Jun 2014
    Location
    NY
    Posts
    1,116
    Year
    2014
    Model
    Optima-Black
    Trim
    SX-T Prem/Tech
    Quote Originally Posted by Waynerm002 View Post
    Are you filling it to when the pump stops, if so you might try adding more until it gets up to the top. It's known that the hybrid cars hold an extra 5 gallons beyond the stated capacity, not sure about the standard car. The pump seems to click off long before I reach the rated capacity but you can continue filling.


    Sent from my iPad using Tapatalk
    Supposedly, one can run the risk of flooding the Evap System charcoal canister by overfilling right to the top, so I wouldn't suggest taking the chances. I used to do that until I heard this many years back, so now I let the nozzle click off and remove it.

  5. The Following User Says Kudos to toptobottom For This Useful Post:


  6. Remove Advertisements
    Optima Forums
    Advertisements
     

  7. #4
    Learner's Permit
    Join Date
    May 2016
    Location
    Atlanta
    Posts
    135
    Year
    2016
    Make
    Kia
    Model
    Optima
    Trim
    SX-L
    Quote Originally Posted by Waynerm002 View Post
    Are you filling it to when the pump stops, if so you might try adding more until it gets up to the top. It's known that the hybrid cars hold an extra 5 gallons beyond the stated capacity, not sure about the standard car. The pump seems to click off long before I reach the rated capacity but you can continue filling.


    Sent from my iPad using Tapatalk
    DO NOT OVERFILL THE TANK. When the pump stops, that's it. Stop pumping. Do not top off

    These vehicles will dump gas into the charcoal canister, EVAP air filter, and canister close valve. Depending on the vehicle and engine could be upwards of $1,000

  8. #5
    Riding Lawn Mower
    Join Date
    Apr 2017
    Location
    El Paso, TX
    Posts
    36
    Model
    2016 Optima SXL
    The official fuel tank size is 18.5 gallons. But yes, not all of that is usable, since the fuel pump has a 'hole' for cooling, and fuel system won't use that volume. So I'd guess the usable volume is around 18 gallons. As far as filling goes, I always start at the highest pump speed, but that releases the pump earlier than it has to. So after that, I continue manually at a slow pace, and when it clicks again, that's it. Never an issue with any car. Noticed I could pump more into this car than on most others. If you want to stop pumping at the first click, then use the slowest (usually 3 settings) available speed when locking the gas trigger, or you wouldn't have a full tank of gas.
    2016 Optima SXL white/white. MODS: chrome wheels, Homelink, cargo hook, cargo mat, tinted windows (35%).

  9. #6
    OptimaForums Veteran KingFatty's Avatar
    Join Date
    May 2013
    Posts
    1,225
    Year
    2012
    Model
    Black SX Prem. & Tech.
    Quote Originally Posted by elp_jc View Post
    then use the slowest (usually 3 settings) available speed when locking the gas trigger, or you wouldn't have a full tank of gas.
    Finally a use for the other click stops on the pump handle! I always wondered why they were there or who used them, now it will be me using them!

  10. #7
    Newbie
    Join Date
    Apr 2017
    Posts
    4
    Year
    2016
    Make
    Optima
    Model
    2016 optima sx turbo
    Trim
    Sx
    Filled my '16 sx up for the first time the other day. Had a quarter tank showing and put about 9.5 gallons in, so I would assume if it was showing near empty I would be around that 13 gal mark.

  11. #8
    Newbie
    Join Date
    Apr 2017
    Location
    Colorado
    Posts
    5
    Year
    2016
    Make
    Optima
    Model
    Oprima SX Turbo
    Trim
    SX Turbo
    I don't think the issue is not getting enough gas in the tank, I think the gauges read lower than is actually the case. It says 40 miles left til empty, but I think you probably have about 100 left. I might test this theory and see how far it will go.

  12. #9
    Learner's Permit
    Join Date
    May 2016
    Location
    Atlanta
    Posts
    135
    Year
    2016
    Make
    Kia
    Model
    Optima
    Trim
    SX-L
    2016 2.0T. Let me know if anybody has any other questions.

    Fuel tank Size?-screenshot-www.kiatechinfo.com-2017-04-21-09-42-32.png

  13. #10
    Learner's Permit
    Join Date
    Jan 2013
    Location
    Aurora, Colorado
    Posts
    102
    Year
    2016
    Make
    Kia
    Model
    Optima
    Trim
    SX-L
    Twice I put in gas at the half mark and twice the pump popped at 7.1-7.2 gallons which is two gallons or so from what a half a tank should be and that is 9.25 gallons.
    Today the needle was to the left of the half mark and it popped at 7.4 gallons, so at least my gauge is two gallons off, but in my favor.

  14. Remove Advertisements
    Optima Forums
    Advertisements
     

+ Reply to Thread

Similar Threads

  1. Need Suggestions...2012 SX..Eibach lowered..rim size/ tire size
    By OKOptimaSX in forum Optima Wheels, Tires and Suspension
    Replies: 2
    Last Post: 10-27-2014, 03:13 PM
  2. How to down size of house for Mishimoto Baffled Catch Can to size of PCV Valve/Hose
    By ht_addict in forum Optima Engine and Technical Discussion
    Replies: 0
    Last Post: 06-18-2014, 10:05 PM
  3. Hybrid gas tank size
    By Jasper in forum Optima Hybrid
    Replies: 1
    Last Post: 05-10-2014, 10:42 PM
  4. Fuel Tank Capacity
    By dwgatorfan in forum Optima Engine and Technical Discussion
    Replies: 79
    Last Post: 08-02-2012, 09:32 PM
  5. When your fuel light comes on, how many miles does your tank have on it?
    By Crossover37 in forum Optima General Discussion
    Replies: 2
    Last Post: 02-02-2012, 04:16 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Powered by vBadvanced CMPS v4.1.2