Can the need for an oil change affect gas mileage?

The oil life in my 2005 Chevy Cobalt is at 12% and I feel like my gas mileage is suffering.

6 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    what that means is your getting close to your oil change, you start out at 100% and go down from there and your computer in your car will let you know when it is time to change it. Colbalts get decent milage. Your gas milage isn't suffering, if you want to increase your milage and go a little longer between oil changes, switch to synthetic oil your milage may increase a few miles per gal.

    Source(s): Drive 50-75k a yr nursing, work on my own cars
    • Login to reply the answers
  • Anonymous
    5 years ago

    This Site Might Help You.

    RE:

    Can the need for an oil change affect gas mileage?

    The oil life in my 2005 Chevy Cobalt is at 12% and I feel like my gas mileage is suffering.

    Source(s): oil change affect gas mileage: https://biturl.im/gsmFB
    • Login to reply the answers
  • Flor
    Lv 4
    4 years ago

    For the best answers, search on this site https://shorturl.im/awuOC

    Oil changes cannot and will not have any impact on gas mileage. Did you reset the SID to see if resetting it changes it? Has anything else changed that could have impacted your gas mileage? Something else is impacting it... your mechanic is telling you the truth. For example, a dirty air filter can badly impact your gas mileage - has the car been tuned as it should be?

    • Login to reply the answers
  • 1 decade ago

    Chevy cobalts are not great on gas anyway. Probably one of the worst small cars on gas. Get your oil changed for goodness sake. Take it to the dealership or to Midas, pay 25 bucks and get peace of mind. You are driving a general motors car. Your best bet for getting the most years you can out of it would be to change the oil regularly- every 4K miles or so.

    • Login to reply the answers
  • How do you think about the answers? You can sign in to vote the answer.
  • 1 decade ago

    what do you mean your oil life is at 12%? are you basing it on mileage, or on age? yes, dirty or contaminated (too thick)oil can affect your gas mileage. there can be alot of things that can affect gas mileage, air filter, gas, low air pressure in the tires, time for a tune up, etc., etc. how many miles do you have on the vehicle?

    Source(s): 5-6 years in the part biz
    • Login to reply the answers
  • 1 decade ago

    Well you wouldnt notice it if it did actually affect it. If you feel like its worse, check tire air pressure, air filter and tuen up parts

    • Login to reply the answers
Still have questions? Get your answers by asking now.