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  #1  
Old 10-17-2005, 11:24 PM
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LeSabre97mint LeSabre97mint is offline
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Millage with your 3800/condition of O2 sensors?

Hello
I'm wondering what everyone is getting for millage with their 3800. Would you post your millage and what you know about what type of maintenance you have done on your car?

I've only gotten around 23 - 24 with my 97 LeSabre. I have around 105,000 miles on it. I've checked the O2's with a PC based OBDII scanner and they look like they're working fine.

How many replaced their O2 sensors and didn't feel any difference? Who did feel a difference? What was the millage on the sensor?

Should I be getting better millage?

Thanks for your rely(s)

Regards

Dan

Last edited by LeSabre97mint; 10-18-2005 at 11:03 PM.
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  #2  
Old 10-18-2005, 02:25 AM
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Re: Millage with your 3800

I get about 22 mpg on my 2002 PA but I'm a lead foot!
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  #3  
Old 10-18-2005, 01:35 PM
polarzak polarzak is offline
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Re: Millage with your 3800

The on board computer says an average of 8.2 liters/100 kms, which converts to 28.6 miles per US gallon combined city/highway driving. (34.45 miles per Canadian gallon).

Last edited by polarzak; 10-18-2005 at 02:08 PM.
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Old 10-18-2005, 03:50 PM
happydog500 happydog500 is offline
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When my dad had the car, he got 31mpg. Since I bought it, I get 28.6 last time I checked.

Right now my 1997 has 122,000. My dad did all the maintance right on scedule. Mine uses oil. Makes me mad.
I change it every 3,000 miles. I need to add a quart in the middle, then at 3000 I'm almost a quart low.

Seems to use a lot more on the freeway then in town. Shouldn't use it like that with only 122,000.

I'm happy with the milage tho.
Chris.
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Old 10-18-2005, 08:42 PM
stuzman stuzman is offline
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Re: Millage with your 3800

Quote:
Originally Posted by LeSabre97mint
Hello
I'm wondering what everyone is getting for millage with their 3800. Would you post your millage and what you know about what type of maintenance you have done on your car?

I've only gotten around 23 - 24 with my 97 LeSabre. I have around 105,000 miles on it. I've checked the O2's with a PC based OBDII scanner and they look like they're working fine.

Should I be getting better millage?

Thanks for your rely(s)

Regards

Dan
2000 LeSabre: 96,000 miles
32mpg highway, not sure of city driving
General routine maintenace
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  #6  
Old 10-18-2005, 09:36 PM
imidazol97 imidazol97 is offline
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Re: Millage with your 3800

Quote:
Originally Posted by LeSabre97mint
I've only gotten around 23 - 24 with my 97 LeSabre. I have around 105,000 miles on it. I've checked the O2's with a PC based OBDII scanner and they look like they're working fine.
Dan
What PC based scanner are you using? Are there other scanner choices? I'm thinking of getting one for my 98 and 03.
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  #7  
Old 10-18-2005, 10:04 PM
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LeSabre97mint LeSabre97mint is offline
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Re: Millage with your 3800

Quote:
Originally Posted by happydog500
When my dad had the car, he got 31mpg. Since I bought it, I get 28.6 last time I checked.

Right now my 1997 has 122,000. My dad did all the maintance right on scedule. Mine uses oil. Makes me mad.
I change it every 3,000 miles. I need to add a quart in the middle, then at 3000 I'm almost a quart low.

Seems to use a lot more on the freeway then in town. Shouldn't use it like that with only 122,000.

I'm happy with the milage tho.
Chris.
Are you burning the oil or leaking it?

Dan
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  #8  
Old 10-18-2005, 10:20 PM
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LeSabre97mint LeSabre97mint is offline
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Re: Re: Millage with your 3800

Quote:
Originally Posted by imidazol97
What PC based scanner are you using? Are there other scanner choices? I'm thinking of getting one for my 98 and 03.
I got this OBDII PC based tester: http://obddiagnostics.com/ Software is free. They provide a schamatic to build the interface, or differenent build level kits, to prebuilt. I bought the prebuilt becase lack of time.

I like it, however, I wish it would read ABS and Air Bags

Dan
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  #9  
Old 10-18-2005, 11:16 PM
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93buicklesabrelmtd 93buicklesabrelmtd is offline
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Re: Millage with your 3800

28 mpg with a real heavy foot.
It prob gets about 30 when you feather it, like dont get the rpms over 2.
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Old 10-20-2005, 08:10 PM
effenfish effenfish is offline
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Re: Millage with your 3800/condition of O2 sensors?

We're getting about 25-26 mpg out of our 1997 Custom, keeping the speed below 60. Tires make a difference too (rolling resistance).
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  #11  
Old 10-23-2005, 09:19 PM
happydog500 happydog500 is offline
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Don't seem to be leaking it. I had my engin steam cleaned to see where it was leaking. That was 5 months a go and the motor is still very clean.

I don't see any somke at all. Just low on oil.

A frend told me of a car he got, smoked like crazy. He put in motor cleanner. He said it stopped smoking ("Rings Stuck?"). Not sure if I should try since I thought it should be the other way, get that thick, stuff that clogs things up.
Chris.
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  #12  
Old 10-25-2005, 09:53 AM
jase386 jase386 is offline
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2000 lesabre, get 22.5 around town when using 10%ethanol gas, and 24 around town when using phillips 66 true gasoline. 87 octane
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  #13  
Old 11-11-2005, 12:12 PM
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1990 Buick LeSabre Limited Coupe
3800 3.8 V-6
Pennzoil Platinum 5-W30
74,000 miles
around 20-22 mpg
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Old 11-11-2005, 05:42 PM
sturdei sturdei is offline
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Re: Millage with your 3800

1993 Buick LeSabre Limited
3800 3.8 V-6
cheap Wal-Mart oil...
198,000 miles
around 21-22 mpg with a lead foot.
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  #15  
Old 11-11-2005, 07:22 PM
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Re: Millage with your 3800

21 around town in traffic
25 mixed freeway and town
28 freeway only

Both my 97 lesabres are in the above range, I always use the AC and I do a decent amount of flooring it.
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