Last post on May 01, 2013 at 1:21 PM
You are in the Hyundai Santa Fe
What is this discussion about?
Hyundai Santa Fe, Fuel Efficiency (MPG), SUV
#454 of 506 Re: Santa Fe 09 poor gas mileage [karhanter]
Feb 07, 2011 (10:37 am)
my husband drive 65-70 mph highway. We're hopeing that the maintenance done on his car last week improves the mileage...the dealer asked him to keep a ledger.
#455 of 506 Re: Santa Fe 09 poor gas mileage [mtnman1]
Feb 07, 2011 (10:38 am)
we're using the car's computer...no need to apologize. We also let the car go almost empty and filled it up to see how many miles per tank he was getting. It had decreased by almost 100 miles since her purchased it last Oct.
#456 of 506 Re: Santa Fe 09 poor gas mileage [graceh]
Feb 07, 2011 (2:50 pm)
Using the car's computer can be very inaccurate. Now you may have been saying what I'm suggesting here in your message, but just in case try the following. Fill up and reset your trip computer. Do not squeeze anymore gas in the tank beyond when the trigger on the fuel pump stops. Then on your next fill up record the number of miles showing on the trip computer. Take the total miles traveled since the last fill up and divide the number of gallons it took on the current fillup into the miles traveled. Ex: traveled 200 miles and put in 10 gallons (200/10 = 20mpg). Do this on every fill up and you will get a much more accurate idea of your MPG.
#457 of 506 Cold Weather Blues
Feb 07, 2011 (3:42 pm)
All vehicles get fewer miles per gallon in colder weather. All the fluids n the engine and transaxle are cold and thick, and this robs some power every trip you take.
Don't forget to check tire pressure - you'll need to add air in cold weather just to keep the pressure up. I run mine at max recommended - 33 psi. Underinflated tires are one of THE major reason for poor gas mileage, in all seasons. Cold weather just makes it happen without us noticing.
#458 of 506 Re: Santa Fe 09 poor gas mileage [mtnman1]
Feb 10, 2011 (10:07 pm)
mtnman1 is right. I have a 2010 limited 4 cyl and I found that my computer is reading low. Not by much, only a mile per gallon, but my Fe has the optional 18" wheels. The computer would be off more if I had the standard 17" wheels. BTW, even with the computer error, I get an average of 23 around town and 26 HWY. However, in west Texas where the speed limit is 85, I get about 21 at those speeds. I have also found that buying named brand gas, like Shell or Exon, increase mileage. The cheaper stuff is just that, cheaper.
#459 of 506 Re: Santa Fe 09 poor gas mileage [obkt]
by kyfdx HOST
Feb 13, 2011 (11:36 am)
Optional wheels won't affect your trip computer... The outside circumference of the tire should be the same, whether you have 17" or 18" wheels.
#460 of 506 Re: Santa Fe 09 poor gas mileage [graceh]
Feb 13, 2011 (5:03 pm)
I wish you the best of luck in pin-pointing the problem. I had a 2002 Santa Fe AWD with a 2.7L v6 that did really well on gas mileage. I traded it for a 2006 Santa Fe AWD with a 3.5L v6 and it was TERRIBLE. My 2002 got 27 MPG on the highway with A/C on low and cruise set to 70 MPH int he summer. My 2006 NEVER got more than 20 MPG along the same drive and conditions. They just laughed and told me that it was normal for that powertrain. But the sticker on the 2006 said it should have gotten better. I loved that SUV too but finally sold it last Spring with only 25k miles on it because of the lousy gas mileage.
I'm still a big fan of Hyundai. My 2002 Santa Fe did great! And my 2005 Elantra consistently gives me 30 MPG in mixed driving with 140k miles on it.
You might ask them to check the oxygen sensors. Those don't always send a code when they are acting up. And they can definitely affect you gas mileage. There are a lot of electronics on the engines these days.
#461 of 506 Re: Santa Fe 09 poor gas mileage [kyfdx]
Feb 14, 2011 (8:12 am)
I agree... BUT- you would have to stay with the oem tires - any other tire will have a different rotation per mile and may change the mpg for better or for worse... and this is definitely more significant if you change from the oem tire size - there are options that will fit that are not the oem size...
#462 of 506 Re: Regular Unleaded [kg325]
Feb 23, 2011 (8:16 pm)
My 2007 SF AWD V6 (3.3 I think) is getting similar terrible gas mileage averaging 15 in town & maybe 18 hwy. We are incredibly disappointed. I love my SF except for this. Is there anything that can be done?
#463 of 506 Re: Regular Unleaded [funnyfarm3255]
Feb 24, 2011 (10:25 am)
Well....we believe we were "duped" by the dealer. The sticker on the car was extremely misleaading! A Honda Civic is the only solution. We've been working with multiple dealers for almost a year with little or no improvement. We're getting 19-20 HWY, which is better than the 15 we were getting. But, gas prices are rising....we checked out the Chevy Equinox and actually spoke with drivers...all are very happy and very very pleased with gas mileage over 25 HWY and close to 20 in town.