* Server response code: 500 We've had a minor breakdown.






We've had a minor breakdown.
The page you were looking for didn't load. Try refreshing the page, or check out our Site Map.







Kia Optima Real World MPG

211 messages,  Last post on Dec 31, 2012 at 8:05 PM

You are in the Kia Optima Forum.

What is this discussion about? Kia Optima, Fuel Efficiency (MPG), Sedan

Messages Page 22 of 22

#207 of 211 Re: Gas engine sedan mpg discussion [backy] by cski

Dec 30, 2012 (5:45 pm)

Replying to: backy (Dec 28, 2012 3:35 pm)
You have to understand that it is not the speed causing the plummeting MPG. It is air resistance. Wind at 75 MPH is a class one hurricane. That pressure on the front of the car is far more than at 55. So it isn't the engine becoming suddenly non-economical. Make sense?

#208 of 211 My SX is broken in... by lakerfan24

Dec 30, 2012 (11:32 pm)

Hey guys, I've got about 7,000 miles on my 2012 Turbo SX and I recently averaged about 24.5 mpg (Eco on) on a tank that I got stuck in traffic with. I had to drop my son off at the local K-Mart to meet other Cub Scouts who were going on a weekend trip. The usual 8 minute drive took 2 and a half hours due to an overturned truck on the Fwy. So I was happy with the 24.5 mpg. Later on, my tire pressure light came on and I discovered that all 4 tires were evenly low on air. Off the top of my head, I think the max pressure on my tires were 48-49 psi max. I filled them up to about 38-39 psi and averaged 29 mpg on my next tank. I drive about 65% Hwy and 35% City. I live at the top of a hill and my Fwy routes have ups and downs. Oh, and YES, I do occasionally open up that Turbo

#209 of 211 Re: My SX is broken in... [lakerfan24] by cski

Dec 31, 2012 (6:11 pm)

Replying to: lakerfan24 (Dec 30, 2012 11:32 pm)
Great. I get 24.2-24.8 consistently. I have the 2.4, but both engines have similar figures.
 
I am guessing that there was a sudden cold snap where you live and that dropped the tire pressure.
 
It's normal in my hypothetical condition.
 
Happy New Year

#210 of 211 Re: My SX is broken in... [cski] by lakerfan24

Dec 31, 2012 (6:37 pm)

Replying to: cski (Dec 31, 2012 6:11 pm)
It's cold here now, but it wasn't really when it happened. I think cuz I don't drive it all the time and it sometimes sit for a week or so without driving it can cause the pressure to lower.
 
I got it Nov 2011 and it's under 7,000 miles now. I think it has to do with the way you drive too. If I'm NOT driving stop light to stop light, I like to work thru to gears quickly and when I hit about 42-43 mph, I put it into 6th gear and ease off the gas. If going onto the Hwy, I would do the same but would get up to my cruising speed or the flow of traffic and then back off the gas...

#211 of 211 Re: Gas engine sedan mpg discussion [cski] by backy

Dec 31, 2012 (8:05 pm)

Replying to: cski (Dec 30, 2012 5:45 pm)
You have to understand that it is not the speed causing the plummeting MPG. It is air resistance.

And the increased air resistance is due to... what, exactly?
 
I tried to find a route that existed in a total vacuum, but then realized the engine needs air to operate, so I scratched that idea.

Messages Page 22 of 22

To POST a message, please Sign In.

Advertisement

Browse by Category

Browse by Vehicle
   View All Vehicles

Browse by Board
Browse by Topic
View All Topics

Edmunds Community

Advertisement