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HHR Real World MPG Numbers

93 messages,  Last post on Nov 19, 2009 at 10:35 AM

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#76 of 93 help! by huffmanshhr1 Jun 01, 2009 (9:15 am)
I am a very new HHR owner and I am having a problem with what everyone else in the world of hhr's is saying they get for mpg and what we are getting!!! I have a 2007 LT with the 2.4l engine. We bought it approx 3 weeks ago and in every other waywe love this car!! We are even considering taking it back and utilizing our "30 day if not satisfied get a different car" option. Not because we dont love the HHR but because we are only getting 17-19 city and 25max highway! What can I do? Oh and We use cruise on the highway, and we ARE running the air in town AND on the highway. One other comment. A gentlemen who owns a tiny car dealership swears to me that chevy makes a 100,000 mile spark plug!???? Told me if I dont believe him, call gm.Well I wouldnt even know where to guess to call.Has anyone ever heard of such a thing? I only have one week left to make a decision on this car, and am desperate to figure this out. Replies to this message: poncho167 (Jun 05, 2009 7:09 am) huffmanshhr1 (Jun 05, 2009 1:55 pm) frauhauptmann (Jun 10, 2009 6:42 am) manny48 (Aug 28, 2009 5:55 pm)
#77 of 93 Re: help! [huffmanshhr1] by poncho167 Jun 05, 2009 (7:09 am)
Replying to: huffmanshhr1 (Jun 01, 2009 9:15 am) There maybe an AC/Delco platinum plug that they say will last 100,000 miles like the Bosch 100,000 plug. Cadillac's and a few cars come with 100,000 mile plugs though I don't know if I would leave them in that long.   Your mileage could be a combination of a few things or just a couple. Have you tried a different brand gas? Some vehicles need to get their computer reflashed to fix problems like this. You could disconnect the battery overnight. This would reprogram the cpu's memory as to your driving style. This has helped with some cars. A sticking brake pad touching the rotar causing a drag can reduce mileage a couple mpg. Replies to this message: huffmanshhr1 (Jun 05, 2009 1:55 pm)
#78 of 93 Re: help! [poncho167] by huffmanshhr1 Jun 05, 2009 (1:55 pm)
Replying to: poncho167 (Jun 05, 2009 7:09 am) Thank You!!!! I am so glad someone finally answered my question!lol The spark plug THIS guy was talking about,he swears they put in the HHR!?? From your reply its a no way on that one......   I am going to disconnect my battery tonight, and have my hubby take a good look at the brakes and pads.   THANKS again!     Carol Huffman
#79 of 93 Re: HHR MPG [bjw57] by huffmanshhr1 Jun 05, 2009 (2:02 pm)
Replying to: bjw57 (Aug 05, 2006 3:53 pm) I think I should have got the manual! lol But I didnt really have that option since we bought it used off a pontiac dealer lot lmao So my question is this: CAN We trade this car straight across if I can find a manual HHR with a sunroof? (the only 2 things we wish we had!**running boards would be nice too but doubt I will find them on a car with a manual shift since most people special order them with automatics**.) and IF I can talk the dealer into the same exact price?   I think the answer is probably a big FAT NO> but it never hurts to ask. lol   Thanks a bunch! in advance   Carol Huffman
#80 of 93 Re: W vs WO Air Conditioner [smogdung] by huffmanshhr1 Jun 05, 2009 (2:12 pm)
Replying to: smogdung (Jun 03, 2007 1:44 am) I see this is a very old post but I am very new to this site . The difference in mpg w out air running is astonomical, to the tune of 10-15 mpg.difference.   We just bought ours so we dont have a whole lot of running numbers but so far that is what we see.   I am hoping your 2007 is still holding up well since that is the year our used HHR is, with a 2.4l engine.   C Huffman Replies to this message: mbranstner (Sep 28, 2009 7:36 am) dmathews3 (Sep 28, 2009 11:34 am)
#81 of 93 Re: help! [huffmanshhr1] by frauhauptmann Jun 10, 2009 (6:42 am)
Replying to: huffmanshhr1 (Jun 01, 2009 9:15 am) I have a 2008 HHR - have had it since October 2007. I get between 27 and 28 mpg. In the beginning, it was lower, but has improved. I have driven other HHR's (rentals) and have gotten 30 mpg. If you read your owner's manual, it says 100,000 miles for tune-up. I have 43,000 on mine and all systems are still running well. I religiously change the oil. I will be buying a 2010 when I retire in September. I put 550 miles a week on the HHR I have now - hence the high mileage. I'd keep the HHR.
#82 of 93 thanks by huffmanshhr1 Jun 10, 2009 (8:19 am)
Thanks for your response and yes, the more we drive it and really learn the car, the more we love it! Like the dealer did not tell us that the 2.4l needs premium to run smoothly.I believe it said 90+? Id have to look. But reading the manual and on this site, Im learning about things I didnt even know I had! Like a subwoofer. lol   I am in total agreement with you.We would only get rid of this one now for a newer HHR!!! This car can function like a small truck, has great options, handles well, and gets good gas milage if your vigilant about your tires, your "lead" foot, the gas you put in it etc....Here in Louisiana we will run that air constantly so that will affect it alot, but no more or less than any other car.   I had asked in an earlier post if anyone knew if we could get the options of the 2LT2 with a manual trans.? Thats the only thing we feel we would prefer but dont want to give up all my options. (I know auto start will not be available in a manual for obvious reasons)   One more thing. For the second time, our engine light has popped on just yesterday. The first time, when he hooked it up to that machine it said mis-fire. Should we take it in or just clear it again? We have a one year bumper to bumper warranty on it. and it is a certified used car.   thanks again., C Huffman
#83 of 93 lowering by cruiser25 Jun 24, 2009 (3:22 am)
Just purchased a new 2008 LT2 2.4 motor with the 5 speed, leather,etc. from a local dealer. Only have put about 1000 miles on, so have not bothered to check the mileage will do so next month on an extended trip (mtns., deserts, etc). Have been only using regular 87 Octaine and have not experienced any difficulty, I do know that the SS 2.0 requires 91 Octaine or better. My question is- what is the best way to lower this vehicle for the best ride and to make the car look lower, sits kind of high for me with the 17" wheels. What company makes the best coil spring? Thanks Rich
#84 of 93 Re: HHR: Real World MPG Numbers [pf_flyer] by pjk2 by kentshhr Jul 11, 2009 (11:23 pm)
I have a 2009 HHR LT2 with the 2.4 L . When I first got it the mileage wasn't so good, (20 city, 26 Highway) took it to dealer who told me that Chevrolet recommends number 1 tier gasoline, example, Chevron, or Shell etc. also most gasonline has a ethanol blend that causes the mileage to drop, try gas without the ethanol, I did and have a vast improvement. I am now getting 27 mpg city and 34 highway, I still just have 3200 miles on the odo. My LT is loaded with Leather etc, I know that you can find a manuel just as easy for it as a automatic, I have the automatic, I really like the remote start. You can reflash the ecu, but the dealer told me if you have latest update it is not necessary. BTW the AC in the modern cars are not suppose to make much of a difference, and mine doesn't seem to maybe 1 mpg and the spark plugs are 100,000 mile plugs. I am extremely happy with the HHR, and would love for my wife to get one, but she seems happy with the Suburban. Although we plan to take our kids to Lagoon in Utah next week, it will cost us $102 in the Suburban and $22 in the HHR. Did I say I love my HHR?
#85 of 93 Re: help! [huffmanshhr1] by manny48 Aug 28, 2009 (5:55 pm)
Replying to: huffmanshhr1 (Jun 01, 2009 9:15 am) Gas mileage in you HHR has ever so much to do with how you drive it. I have a 2007 2.4 motor as well and I watch the DIC religously. The key is not shoving your foot into the gas pedal and accelerating lightly. Watching the DIC MPG readout and gauging your driving habits is instrumental in getting the best gas mileage, and it takes some time to undo old habits. I've been able to get as little as 23.5 MPG out of a tank of gas as well as 31.7 MPG out of a tank, all dependant on how I drive... the same for you I can assure you. Keep in mind, my numbers are all 50/50 mix of city/hwy driving. I'd be willing to guess my highway numbers would e around 33 MPG which isn't bad. Put my wife behind the wheel with the car, guarantee 5-7 MPG less, she drives fast and accelerates up to a red light. Hope this helps.

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