what could be causing me to only get 12-13 mpg

Asked by Feb 08, 2009 at 06:57 PM about the 2006 Buick Rainier CXL AWD

Question type: Maintenance & Repair

I am only getting 12-13 mpg on my 2006 rainer is that normal any suggestions on how to correct or what could be wrong

4 Answers

1,455

According to www.fueleconomy.gov, the Ranier is only rated at 14 city, 20 highway. These are EPA estimates. In the real world, those numbers are usually slightly lower for SUV's. While 12-13 seems painfully low, it is not terribly unusual for this model. If you have close to 100,000 miles, a tune-up consisting of spark plugs, air filter, fuel filter, and upstream oxygen sensors will restore any fuel economy that may have deteriorated over time. However, if your car has less than 100,000 miles, it is not likely to benefit greatly from this work. Unfortunately, I do not think that your numbers are terribly out of line for what can be expected for that car.

65

Depending on your mileage I would think it is time for a tune up. If you have had one of those recently then it could be your fuel injection, air filter, or sparkplugs. I have a 2006 Rainer as well and get around 18-19 miles a gallon. You should try changing you spark plugs to the bosch platnium plus 4.

1 out of 1 people think this is helpful.
4,405

well it depends a lot on your driving habits as well. Try changing the way you rev up or shift your gear. Another cause can be screwed up engine, which can for various reasons. http://bautos.net/

2 out of 2 people think this is helpful.
870

modern engines use cam and crank sensors to tell the engine control module what the engine is doing. I know you have a straight 6 but on 3800 V6 Buicks, if the cam sensor fails, the engine goes into "limp home mode" and that usually affects the mileage. Take it to AutoZone and have them run the codes. You can then get on line and decode the codes and probably track down the problem

Your Answer

Add photo

Related Questions

  • How do I know the vehicle is AWD 3 answers

    2006 Buick Rainier CXL AWD

    -

    Maintenance & Repair

  • I had my fuel injectors replaced on a recall and now my mpg has dropped big time WHY??? 2 answers

    2000 Buick LeSabre

    -

    Maintenance & Repair

  • BIG RED BRAKE LIGHT 3 answers

    when traveling @ speeds greater than 50 mpg BRAKE LIGHT appears with loud dinging alert until car is shut down and re-started any ideas as to what is causing this. car drives and responds great @ all ...

    2003 Buick Rendezvous CXL

    -

    Maintenance & Repair

  • Why is my 1990 Buick w/3.3 cutting out after filling up? 8 answers

    This just started a couple of months ago, but seems it is getting a little worse. I always fill up at 1/2 tank but now when I fill up car crank fine, takes off fine, speeds up fine, then about 2 mile...

    1990 Buick Century Custom

    -

    Maintenance & Repair

  • fuel economy 7 answers

    My son just got athis car with a 3.8L and he doesn't get any better than 22-23 miles per Imperial gallon what can he do. He already changed the oxygen sensor and the tire pressure is good. thanks

    1992 Buick Regal 2 Dr Gran Sport Coupe

    -

    Maintenance & Repair

Rainier

Looking for a Used Rainier in your area?

CarGurus has 384 nationwide Rainier listings starting at $1,850.

ZIP:

Search Buick Rainier Questions

Buick Rainier Experts

#1 burtisconnor
burtisconnor
Reputation 80
#1 tenspeed
tenspeed
Reputation 80
#3 Tom Demyan
Tom Demyan
Reputation 60
View All

Related Models For Sale

Used Chevrolet TrailBlazer
92 Great Deals out of 5,316 listings starting at $1,700
Used GMC Envoy
51 Great Deals out of 2,391 listings starting at $1,800
Used Buick Rendezvous
17 Great Deals out of 1,334 listings starting at $1,550
Used Chevrolet Tahoe
775 Great Deals out of 28,448 listings starting at $1,500
Used Ford Explorer
935 Great Deals out of 73,729 listings starting at $750
Used Nissan Murano
363 Great Deals out of 22,811 listings starting at $1,800
Used Jeep Grand Cherokee
844 Great Deals out of 68,670 listings starting at $864
Used Chrysler Pacifica
60 Great Deals out of 26,500 listings starting at $2,950
Used Saab 9-7X
4 Great Deals out of 170 listings starting at $2,475
Used Chevrolet Equinox
1,260 Great Deals out of 65,891 listings starting at $1,600
Used Toyota 4Runner
320 Great Deals out of 20,548 listings starting at $2,295
Used Chevrolet Impala
795 Great Deals out of 34,381 listings starting at $799
Used Chrysler 300
404 Great Deals out of 22,148 listings starting at $1,000

Used Cars For Sale

2007 Buick Rainier CXL AWD For Sale
43 listings starting at $3,995
2006 Buick Rainier CXL AWD For Sale
4 Great Deals out of 88 listings starting at $1,850
2005 Buick Rainier CXL AWD For Sale
3 Great Deals out of 53 listings starting at $2,595