New car: 2011 Hyundai Genesis Coupe 2.0T
Hey everyone, on 12/14/12 I traded in my old 93 Chevy Lumina and got a 2011 Hyundai Genesis Coupe with 24,750 miles on the odometer. It has a 2L 4 cylinder turbo charged engine with a 5-speed automatic transmission. It's rated 20 city, 30 highway, 23 combined. It produces 223HP with premium fuel (210 on regular however I hear from many genesis owners that premium fuel is best and cheaper due to what they say is better fuel economy, haven't tested it myself) and 217lbs-ft of torque.
After filling up about two tanks now and getting piss poor fuel economy (20.96mpg and 17.86mpg) with a combination of city driving and highway driving (50/50 i would say) I wondered if something was going wrong. Its been about 30-45 degrees here in Chicago, IL the last week or so and now about 20-35 degrees. The second tank's poor fuel economy is somewhat understandable, I had a lot of engine idling in heavy traffic around chicago and a lot of traffic even on the highway but for it to be combined is a shocker. Regardless of those two readings I tried my game at hypermiling again this time really trying and I was able to squeeze out 31mpg from highway driving and a tiny bit of stop-n-go driving in about a 5 mile distance as I tried to get to my house. It may just be my poor driving and heavy traffic afterall that caused me to get such poor figures. I was able to repeatedly get decent numbers from 25mpg (both city and highway) to 31mpg in short trip lengths from 2-5 mile distances. One thing I noticed heavily is that the first 3 minutes or so of driving i get single digit to teen numbers for mpg as the car gets warmed up. Is it typical to get such poor mpg in the first couple of minutes of running a cold engine (getting 8mpg in the first 30 seconds to 15mpg at about 2-3 minutes for a car that gets 23 combined fuel economy) in weather that's about 30 degrees? |
In short, yes. Many cars take ~15-20 minutes to fully warm to temp. Transmission is still cold as well.
Are you able to control the shifting with that automatic? |
Can you explain your route, and are you trying to use the least amount of throttle when you expect to stop soon..
For example my route...from the house to my first stop is about 200 feet so i only accelerat to 10mph and let off the gas and let the momentum and high idle take me to the stop...the i take off again and the next stop is a red light 500 feet away so i only accelerate to 35 mph and coast again...in that short time i get about 20 mpg starting with a cold 32 f engine |
yeah, thats about normal. if you're extra worried you can check your spark plugs and make sure the intake is free of build up. the only real strength of the turbo engine replacing a larger engine is that when you don't need the power, it will use less fuel (idle), otherwise it uses just as much as anything else that produces the same power.
completely different animal, but im running about 70/30 highway/city and getting 24.5-26.5mpg. 220hp/tq summer i will see 28-30 what kind of rpm is the engine turning at 55-60mph? |
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I would chalk a lot of it up to the cold weather. I know how it's been in Illinois, and cold weather just sucks for fuel economy. I've been doing a lot less long distance driving now that school is out and my tank averages have been getting lower and lower.
Also I get similar mpg readings before warm up, I'm not exactly sure about how long this usually lasts though. But I've become accustomed to my drive and know where the point is that I'm usually warmed up, and recently I haven't been getting far past my combined mpg of 24. My drive is about 40 minutes of mostly 55-60 mph driving, however on the weekends I do most of my city driving and I can barely reach my 21 city on the shorter trips. It's just like I said earlier, winter sucks for mpg. |
If there is anything good about me getting this sports car, its that its a bit more of a fuel sipper than its competitors: the Ford Mustang and the Chevrolet Camaro. Smaller engine, lighter by as much 400 lbs over the camaro, turbo charged for when you need to move quick, low Cd of .32 vs the .34 of the mustang and the .37 of the camaro.
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Temperature has a large effect on mileage. For my three mile commute to work, I can get over 40 MPG on a hot day with a tailwind, and less than 20 MPG on a cold day with a headwind. |
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With the new Genesis, its my first time having a mpg gauge and with buying the car in the winter I really didnt know what to expect for mpg read outs during any phase of driving. :) |
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