1985 olds , 6 cyl, great and all originals but now is performing at 10 miles to 1 premium gallon vs. past 15 in the city , WHY ?

Asked by Jul 21, 2015 at 07:37 PM about the 1985 Oldsmobile Cutlass Supreme

Question type: General

Tune up, sparks set at 0.060, oil,filters,cables,gas and air filter new perfect one touch and stars , but why is now at 10 miles to 1 gallon of premium vs previously 15 to 1 gallon ?

3 Answers

30,055

if they retarded your timing... advance that motor...

The timing supposed to be to specifications !!! Car on is smooth andyou dont even think that is ON , but is consuming gasoline .

4,855

Check your fuel lines. A small leak in the system might go unnoticed but could leak away a fair bit of fuel over time.

Your Answer

Cutlass Supreme

Looking for a Used Cutlass Supreme in your area?

CarGurus has 75 nationwide Cutlass Supreme listings and the tools to find you a great deal.

ZIP:

Oldsmobile Cutlass Supreme Experts

  • #1
    munron
    Reputation
    710
  • #2
    tennisshoes
    Reputation
    430
  • #3
    Tom Demyan
    Reputation
    350
View All

Related Models For Sale

Used Chevrolet Monte Carlo
3 Great Deals out of 937 listings starting at $3,900
Used Oldsmobile 442
60 listings
Used Buick Regal
82 Great Deals out of 4,088 listings starting at $3,995
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used Chevrolet Impala
397 Great Deals out of 25,595 listings starting at $799
Used Chevrolet Caprice
126 listings starting at $1,350
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Dodge Charger
242 Great Deals out of 32,689 listings starting at $1,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.