1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Truth behind MPG

Discussion in 'Performance and Tuning' started by DanGer, Sep 29, 2009.

  1. Sep 29, 2009 at 3:56 PM
    #1
    DanGer

    DanGer [OP] Avatar approved by 98tacomav6

    Joined:
    Jun 7, 2008
    Member:
    #7155
    Messages:
    5,494
    Gender:
    Male
    Northern Virginia & Blacksburg
    Vehicle:
    07 Base 4Cyl 4x4 Manual
    White Head Light mod, White shorty antennae, Doug Thorley Long Tube headers, AFE Drop in air filter, Secondary Air Filter Removed,
    Ok I had this conversation with chris earlier and here are my real-world findings on increasing fuel economy. Keep in mind I have a 4 banger so results may or may not be relevant to you. I started at 18.9 mpg with tires re-inflated to my specs, and driving intelligently.

    Things that helped:


    • Driving style is huge. Slow acceration helps a little but not significantly. Mainly shifting and (as another member said, not sure who) driving like the breaks don't work
    • Switched engine to Mobil 1 0W-20 synthetic added 1.5-2 mpg
    • At 30 K maintenance, I seafoamed, cleaned the throttle body and switch all fluids over to synthetic. This added 2-2.5 mph
    • Tire pressure. Keeping them properly inflated gave me better milage than the dealers "soft ride" inflation. I had no numbers at this point so I can't say how much it helped.
    • Ethanol-free gas got my final MPG from 22.9 to 24.6

    Things that didn't help (but did not hurt it)

    • Removing secondary air filter and the AFE Pro Dry S air filter. This gave me .5 mpg tops.
    • Headers (only had them on for 3 tanks so it may need longer to get solid data), but since then my mpg has been about the same.
     
  2. Sep 29, 2009 at 5:36 PM
    #2
    SlurpeeBlueMetallic

    SlurpeeBlueMetallic FFFFFFUUUUUUUUUUUUUUU...

    Joined:
    Jun 23, 2009
    Member:
    #18825
    Messages:
    1,660
    Gender:
    Male
    I'd add one clarification:

    For folks who do a lot of suburban/outer city driving like me slow acceleration is the main point of savings. For highway driving, not so much. I tested this over 2 tanks... if I accelerate about 25% faster than my normal my MPG goes down 1.5-2.

    And +1 on the ethanol thing... instant -10% in gas mileage.
     
  3. Sep 29, 2009 at 5:41 PM
    #3
    DanGer

    DanGer [OP] Avatar approved by 98tacomav6

    Joined:
    Jun 7, 2008
    Member:
    #7155
    Messages:
    5,494
    Gender:
    Male
    Northern Virginia & Blacksburg
    Vehicle:
    07 Base 4Cyl 4x4 Manual
    White Head Light mod, White shorty antennae, Doug Thorley Long Tube headers, AFE Drop in air filter, Secondary Air Filter Removed,
    I agree completely. I find accelerating smartly in city helps a lot, while getting up to speed promptly on a highway does not matter
     
To Top