experiencing HUGE mpg gains
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This is a discussion on experiencing HUGE mpg gains within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Nobody believes me but I swear its true. At 8500k miles i was Constantly getting between 137 and 142 mile ...

  1. #1
    Registered User StarScream's Avatar
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    experiencing HUGE mpg gains

    Nobody believes me but I swear its true. At 8500k miles i was Constantly getting between 137 and 142 mile per half tank of Gas. Then I changed my engine oil from Quacker State Q advanced to Royal Purple 5W30. Right away I noticed a smoother feel in the engine revs and a noticeably quicker feel to the car, but no gas mileage increases.
    Then after a little over 9k I started noticing i was getting around 165 miles per half tank. Awesome.

    Then around 10k i started noticing i was in the mid 180's per half tank.
    Now i just hit 11k and I'm at 205 miles on a half tank!! WTF !!
    Given that the 06 has a 15.9 gallon tank that means I'm doing better than 25 miles a gallon. ( BTW...all of this is with Sunoco 93 octane 90% of the time) The Royal Purple people DO advertise an increase in MPG as a result of reduced engine drag....but Im stunned if this is the norm.
    All i have is an SPT catback, lots of suspension stuff and a K&N filter.
    Maybe my engines starting to mature or something?
    Maybe my fuel gauge is faulty?
    Maybe Royal Purples claims are true??


    Anyone with a comment ....fire away

    p.s. No I do not work for Royal Purple

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  3. #2
    Is in Love With the Admins Here 20WRX04's Avatar
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    Quote Originally Posted by StarScream View Post
    Anyone with a comment ....fire away

    p.s. No I do not work for Royal Purple
    My buddy just changed his oil to Royal Purple yesterday in his Jeep Cherokee. He immediately noticed a difference as far as the engine goes. I'll have to see if he sees anything in MPG.
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    Administrator RayfieldsWRX's Avatar
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    Closed because you've crossposted this to multiple forums.
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