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Sedans Buick Lucerne Buick Lucerne: Real World MPG
104 messages, Last post on Apr 11, 2009 at 8:01 PM
You are in the Buick Lucerne Forum. Your Hosts are pat & karens
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Replying to: imidazol97 (Dec 04, 2007 2:40 pm) |
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Replying to: buddiemac (Nov 11, 2007 9:14 am) I am also surprised that just increasing speed to 55 - 57 MPH a 10 % drop in mileage- not sure why either since lockup converter is engaged a at both speeds. I be interested in the octane of gas which you got your mileage. Also I hear that the level of ethenol affects mileage. |
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| I use plain 87 octane with 10% ethanol. I don't WANT to use that junk but I don't have other choice. I have found that my "sweet spot" is between 60 and 65. | |
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According to the Driver Information Center (DIC) my Lucerne is getting an average of 25.0 MPG. My old 2000 LeSabre was getting 28.6, and that was with 160,000 miles on the odometer. Same engine and transmission in both cars. The Lucerne is a terrible car all around. Thankfully, when I want to drive a smooth, quiet, well made vehicle, I can still take my old LeSabre out as it is now my wifes car.
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Then get rid of the Lucerne. Personally, we love ours. Mileage of 30+ on the highway no problem.
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Replying to: paradox2 (Jan 30, 2008 4:36 am)  There are very few people here that have the problem that you and I do with our Lucernes. It's not the way we drive our cars. It's not the roads. It may be the fuel, but I've tried them all and none seem to make a difference. I changed over to full synthetic oil, I have tried fuel injector cleaners, NOTHING WORKS....I even had the dealership open a service file and they kept my car for 3 weeks trying to remedy the problem. They consulted with Buick (Buick was clueless), they sent it home with no remedy. I believe there are some Lemon Lucernes out there coming off the assembly lines and either Buick doesn't know how to remedy the problem, or won't...Either way, I'll keep the car for awhile longer until I pay the note down, then I'll trade it in.
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Replying to: taralee (Jan 31, 2008 7:21 pm) Telll us about the area where you live as far as the type of driving you do. How close are the stoplights? Are you on the freeway? What mileage do you get when you take a long drive on a highway without stoplights? When you reset the MPG gauge while you're rolling on an open highway with the car warmed up, what kind of mileage do you get? |
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Replying to: imidazol97 (Feb 01, 2008 4:08 am)  for sure.
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Replying to: taralee (Feb 01, 2008 6:19 pm)
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Replying to: taralee (Feb 01, 2008 6:19 pm) That takes additional fuel and is not recommended. Let the car idle for 10-15 seconds while you get things organized, then gentle start driving. Use the fuel recommende for the car. I believe regular is recommended for both the 3800 and Northstar. If you've
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