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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

What is this discussion about? Buick Lucerne, Fuel Efficiency (MPG), Sedan


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#45 of 104
Re: Lucerne MPG sucks [imidazol97] by taralee
Feb 02, 2008 (2:21 pm)
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Replying to: imidazol97 (Feb 02, 2008 7:59 am)

The dealership recommended that I warm the car up for 5-10 minutes on cold mornings so I do. They said it would use more fuel if I didn't. I have a 3.8 V-6... I use the recommended octane fuel which is 87 (or higher) as specified in the manual...I was told to use "high tier fuels" for example go fill up at Conoco or Shell instead of Love's or some other little convenience store with low grade fuel....
#46 of 104
Re: Lucerne MPG sucks [b88lazer] by waynenovotny
Feb 02, 2008 (6:30 pm)
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Replying to: b88lazer (Feb 02, 2008 6:29 am)

3.8L V-6
#47 of 104
Re: Lucerne MPG sucks [taralee] by waynenovotny
Feb 02, 2008 (6:37 pm)
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Replying to: taralee (Feb 02, 2008 2:21 pm)

The dealership said to warm it up for 5-10 minutes?? I've never heard of that. My dealer said just the opposite. They said let it run for 30 seconds or so (on real cold mornings ... I live in WI) then drive away slowly. The engine warms up faster driving it than idling.
#48 of 104
Re: Lucerne MPG sucks [waynenovotny] by taralee
Feb 03, 2008 (7:05 am)
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Replying to: waynenovotny (Feb 02, 2008 6:37 pm)

I don't know either way.
All they told me is that oil when it's cold is thick, and requires a warm up in order to lubricate moving parts more efficiently. Driving it cold makes the oil pump move thick oil slower to moving parts, therefore causing friction and wear.
#49 of 104
Re: Lucerne MPG sucks [taralee] by hjw1
Feb 03, 2008 (5:04 pm)
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Replying to: taralee (Feb 03, 2008 7:05 am)

What is your tire pressure?
 
Buick's recommended tire pressure on the Lucerne is in the 30 - 32 pound neighborhood IIRC. The maximum tire pressure printed on our tires is 44#. We run ours at around 37 as a compromise between greater rolling resistance at 32, and harsh ride at 44.
 
I know, "follow the manufacturers tire pressure recommendations", but at the lower tire pressure, your mileage and tire life will be lower than at at a slightly higher pressure.
#50 of 104
Re: Lucerne MPG sucks [hjw1] by imidazol97
Feb 03, 2008 (6:21 pm)
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Replying to: hjw1 (Feb 03, 2008 5:04 pm)

That pressure on the sidewall is meant as a testing guideline for maximum load. You car is not loading the tire to maximum in any way shape or form.
 
You should take the recommended pressure from the manufacturer and add a FEW pounds. I would keep it 35 or less. Myself I run at 33 typically on my Buicks which have a door sticker at 30. I have Michellin tires on both cars.
#51 of 104
Re: Lucerne MPG sucks [taralee] by imidazol97
Feb 03, 2008 (6:24 pm)
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Replying to: taralee (Feb 03, 2008 7:05 am)

Unless you're talking 0 and below (Fahrenheit) in Oklahoma City area I believe you said you live in, You only need to run it for a short part of a minute and then gently let it ease itself on down the road. It will warm up better that way. It's better for the motor overall.
 
If you are particularly cold in the winter you want to put in 5W-30 oil for that oil chagne in Nov. Dec. and then switch to 10W-30 when you change your oil in the spring and have the heavier oil for summer. If your car is garaged you can do as I do in W. Ohio and use 10W-30 all the time. My car rarely sits outside where it's extra cold to be very cold for a start.
#52 of 104
Re: Wayne [waynenovotny] by paradox2
Feb 04, 2008 (3:39 am)
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Replying to: waynenovotny (Jan 31, 2008 1:57 pm)

waynenovotny
 
You obviously drove a 64 Volkswagon before your Lucerne. I will be willing to bet that most of the people who think the Lucerne is a wonderful car, drove a compact
vehicle with square tires prior to the purchase of their Lucerne.
#53 of 104
Re: Wayne [paradox2] by b88lazer
Feb 04, 2008 (7:07 am)
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Replying to: paradox2 (Feb 04, 2008 3:39 am)

Never drove a compact with square tires. You lose the bet. Now you have REAL problems.
#54 of 104
Re: Wayne [b88lazer] by paradox2
Feb 05, 2008 (4:15 am)
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Replying to: b88lazer (Feb 04, 2008 7:07 am)

LOL...Ok I lose but the bet was for my Lucerne...please come and take it. Bring a tow bar or trailer because sometimes it will not start.
I am taking Friday off to look at Lexus. I don't care what the price is. Just tired of this Lucerne nonsense.

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