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| Buick Roadmaster General and Technical discussion for the B-Body Buick Roadmaster (1991-1996) and Oldsmobile Custom Cruiser (1991-1992). |
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10-07-2009, 05:54 AM
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#1 (permalink) |
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updating your cars pc for better fuel milage
would doing this at your local gm garage help in getting better fuel milage, being there is 250,000 miles on my roadmaster, & 144,000 on my fleetwood Cadilliac, being they both have the same engines & drive trains.
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10-07-2009, 08:20 AM
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#2 (permalink) |
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What kind of mileage are you getting now?
Really you should do a little background work first. Full tuneup, make surte all scheduled maintenence is caught up, then get a CAI and a custom tune. I doubt a GM dealership would modify a pcm's programming. They would be happy to restore it to factory specs but that's probably it. |
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10-07-2009, 10:17 AM
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#3 (permalink) | |
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First, I know I'm outside of my box here...so admins don't kill me.
 Second. I'd recommend a good throttle body cleaning and seafoam the engine as well. Get a good chunk of carbon out of the cylinders, crankcase and valvetrain before you do that tune-up. Also, you can get a Dyno tune place to tune your car for best effciency over performance. $400 might save you a couple thousand in the long run. I know that with my mpg increase (again, outside my box), I'm saving on average $1000 in gas for every 10,000 miles I drive. __________________  Quote:
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10-13-2009, 10:34 AM
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#4 (permalink) | |
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10-13-2009, 10:38 AM
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#5 (permalink) | |
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Quote:
__________________ 4 B BODIES 2 SOLD CAPRICES  1995 9C1 UNDERCOVER CAR WHITE ON IMPALA SS'S muff delete/ hollowed cats / I.N.C. REP TILL I DIE 1991 CAPRICE CLASSIC 350 160,000 CUSTOM 20'S STOCK 2 TONE 1991 caprice 305 payed $600 sold 4 $1200 1965 OLDSMOBILE STARFIRE 425 BIG BLOCK 375+- HORSES SMASHES ON FORDS   
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10-19-2009, 12:48 PM
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#6 (permalink) | |
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