excessive oil consumtion 85 307

Asked by Sep 18, 2010 at 06:01 PM about the 1985 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

I just bought a 85 cutlass supreme with the 307 motor with 48000 miles. the car is in super shape plus the low miles. the downfall is that it uses oil some how. It smokes bad at first then it will get better then all of a sudden it gets bad again. it will spit oil out for a bit if it has sat for some time and smoke bad then it quits. i just pulled off the valve cover and it looks good the seals look good and the drains are clear. it will start up quick and run real good and i got 18 mpgs with it in the 160 miles that i drove it and in that time it used a jug of oil up. the spark plugs are brown but dry and have never fould out. the car runs really good but it just smokes. i also put some of that nosmoke stuff in the oil and it made it worse. And ideas????????

4 Answers

15

hows it do when you just let it idle? try pouring oil in as it idles and check everything again when its running

sounds like you got a broken oil ring.

1 of 1 people found this helpful.
9,130

I would check you pcv valve to make sure it isn't clogged.

doesnt smoke at idle and if it does its right after i rev it up for a wile and then it will smoke some at idle but not all the time. the pcv valve is new. I cant belive that it would need rings at its mileage, it runs too good no hesatation or misfireing starts up better that my newer car.

Your Answer

Add photo

Related Questions

  • excessive oil consumtion 85 307 4 answers

    I just bought a 85 cutlass supreme with the 307 motor with 48000 miles. the car is in super shape plus the low miles. the downfall is that it uses oil some how. It smokes bad at first then it will get...

    1985 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

  • My 1983 Cutlass Sup was originally a diesel, now 307 gas. want to change front springs 1 answer

    my 83 was originally 350 diesel. it now has a 307 with headers. looking to change the front springs to lower the front a little. I have air shocks in back. I drive it daily weather permitting, to...

    1983 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

  • Can a 307 be swapped into a 1986 cutlass supreme v8 350 engine???? 4 answers

    I am in need of a new motor...the junkyard does not carry a 350 at the moment but they said a 307 will fit and just add all other parts from old motor and will fit perfectly...will it work is it wo...

    1986 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

  • Oil leak 2 answers

    Oil coming out of what appears to be a threaded hole in the front of the engine. Should there be a bolt in this hole?? Located right near where the radiator hose is.

    1971 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

  • 350 ROCKET MOTOR WITH OIL DRIP 4 answers

    I have a 350 Rocket Motor when I start the engine up and let it run for 20 minutes oil drips from the exhaust I noticed this during the process of putting headers on. Can someone recomend what is ca...

    1977 Oldsmobile Cutlass Supreme

    -

    Maintenance & Repair

Cutlass Supreme

Looking for a Used Cutlass Supreme in your area?

CarGurus has 108 nationwide Cutlass Supreme listings starting at $1,995.

ZIP:

Search Oldsmobile Cutlass Supreme Questions

Oldsmobile Cutlass Supreme Experts

#1 munron
munron
Reputation 660
#2 tennisshoes
tennisshoes
Reputation 410
#3 Tom Demyan
Tom Demyan
Reputation 340
View All

Related Models For Sale

Used Chevrolet Monte Carlo
10 Great Deals out of 1,423 listings starting at $995
Used Buick Regal
158 Great Deals out of 10,675 listings starting at $3,995
Used Chevrolet Camaro
345 Great Deals out of 31,316 listings starting at $2,500
Used Chevrolet Impala
622 Great Deals out of 35,470 listings starting at $899
Used Ford Mustang
686 Great Deals out of 44,983 listings starting at $750
Used Pontiac Grand Prix
30 Great Deals out of 2,827 listings starting at $1,991
Used Chevrolet Corvette
199 Great Deals out of 22,014 listings starting at $2,500
Used Cadillac DeVille
6 Great Deals out of 1,735 listings starting at $2,200

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.