How to change the oil on a 2011 wrx sedan?
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This is a discussion on How to change the oil on a 2011 wrx sedan? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; 1. Have never changed the oil before 2. How much oil do I need 3. Do I have to raise ...

  1. #1
    Registered User 2011REXRoyalBlu's Avatar
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    How to change the oil on a 2011 wrx sedan?

    1. Have never changed the oil before
    2. How much oil do I need
    3. Do I have to raise the car?

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  3. #2
    Registered User teflon_jones's Avatar
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    I'm assuming you have a socket set? It's easiest to do when the car is slightly warm, but it needs to have been sitting for a good hour before you change it so all the oil has a chance to make it back to the pan. Make sure you have a spare crush washer too.

    1. Put some blocks in front of/behind at least one rear wheel. Put the parking brake on and put it in gear.
    2. Jack up the front of the car and put it on jack stands. If you don't have jack stands, you should buy some. Either that or use two jacks on the same side right next to each other, one jack as the primary and one as the safety.
    3. Remove the plastic plate underneath the front. It's attached by several 10 mm screws and several click-in pins that you just pull out.
    4. Remove the oil filter and put it on top of your drain pan to drain.
    5. Remove the oil drain plug.
    6. Get out from under the car and remove the oil filler cap. This lets the oil drain more easily since air can get into the system from the top.
    7. Give it a good 20 minutes to drain, or until the oil coming out of the drain hole is dripping at least 20 seconds apart.
    8. Replace the drain plug using the new crush washer.
    9. Replace the oil filter. I always rub a tiny bit of oil on the rubber gasket to make it easier to tighten it by hand and ensure the gasket seats perfectly on the flange.
    10. Replace the plastic shield.
    11. Lower the car off the jacks / jack stands.
    12. Fill up the car with 5 quarts of synthetic 5w-30.

    Done.
    Scott
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    Registered User dbya rx's Avatar
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    Its very easy and quite enjoyable. Teflons list is rite on, however I believe the 2008+ wrx oil capacity is 4.2 quarts. I buy my oil filers and crush washers at my local subaru dealership for around $8.
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    Registered User sjcurtis's Avatar
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    I always fill the oil filter up with oil before putting it back on, that way the oil pump doesn't have to fill it up before it goes to the motor.

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    Registered User spnkdrm's Avatar
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    Great write up teflon!
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    Registered User Bierman's Avatar
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    I have heard different recommendations on the type of oil to use in my 2011 wrx. How does everyone feel about Royal purple? What is everyone else using? open to suggestions.

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    Registered User xFalleNx's Avatar
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    --Anthony 2011 DGM WRX stg2+sf intake WTFtuned ¯\_(ツ)_/¯

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    Pro Manscaper Mikie13's Avatar
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    Lot of mixed reviews on Royal Purple. If I'm not mistaken, it's not on the "approved list" of oils recommended by Subaru.

    IMO, Royal Purple is more expensive than you need to spend on oil.
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    Registered User Bierman's Avatar
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    I am willing to pay more for oil if it gets me better performance/protection. What kind of oil would you or anyone recommend?

  11. #10
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    I use motul on my car it's really good, it's Subaru approved too.


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  12. #11
    Registered User WRXpa's Avatar
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    Step 1: Do some research, before posting!

    Ha, good luck. Its not that bad. Might want to get a filter wrench to save some headaches if the tech put the filter on too tight.
    I have a low Reynolds number

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    Wasn't there an issue of a lot of engine failures with those that used royal purple? Just something I read a long time ago I think.

    I went with the Rotella after seeing a lot of oil analysis posted in the oil thread. When money gets better i'll go AMSoil like I do with all my cars.

  14. #13
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    true story... I actually didn't jack my car up at all my first oil change. I took the plastic off and got an oil pan under the car and all that. I won't say my neck didn't hurt from not being able to move my head.. but it did work!... I also dropped the filter bolt and in blocked the hole in my oil drain pan and the stuff went all over the floor.. changing the oil was easy... the clean-up took a few hours though.

  15. #14
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    "Royal Purple Ltd. was black and blue after BP Lubricants USA took it to task over advertising claims for its synthetic motor oil, finding a receptive audience in the advertising industry’s self-regulatory forum.

    The National Advertising Division of the Council of Better Business Bureaus recommended Porter, Texas-based Royal Purple modify or discontinue numerous advertising claims for its synthetic motor oil, following a challenge by Wayne, N.J.-based BP Lubricants. The NAD examined comparative performance and superiority claims in print, broadcast and Internet advertising. In some of the advertising, Royal Purple compared its performance to Castrol, Shell, Amsoil and other motor oil brands.

    NAD recommended that Royal Purple discontinue its use of consumer testimonials reporting specific performance attributes in the absence of reliable independent evidence showing performance capability.

    “Anecdotal evidence based solely on the experiences of individual consumers is insufficient to support product efficacy claims, including claims related to horsepower, torque, fuel economy or engine heat,” the organization stated. “While the advertiser may quote from published articles if it provides clear and conspicuous attribution to the publisher, it may not rely on such articles to support efficacy claims for which it has no reliable independent validation.”

    NAD recommended Royal Purple discontinue claims such as “Increases horsepower and torque by as much as 3 percent,” “Reduces Engine Wear by 80 percent,” “Superior Oxidation Stability” and “Provides Film Strength Up to 400 Percent.”

    “If industry-standard tests or tests with carefully documented controls were abandoned, there would be no basis whatsoever for making any meaningful claims about the relative efficacy of motor oils,” BP said in its challenge.

    NAD recommended that Royal Purple discontinue claims that stated, “Improves fuel economy by as much as 5 percent” and “Fuel economy improvement up to 5 percent or more” because its Environmental Protection Agency testing was inconclusive and the “Oklahoma State Study” and single cylinder Labeco CLR diesel engine testing cited in Royal Purple’s advertising was not relevant. The NAD noted the 1997 OSU Study was “outdated and nothing in the record demonstrated that the formulations of the competitors’ oils were similar to those available for sale on the market today.”

    BP Lubricants said it hired the independent laboratory Southwest Research Institute, in San Antonio, to analyze power output of gasoline engines with Royal Purple Oil and with BP’s Castrol oil for comparisons. “The results were provided to the challenger’s expert statistician who was not informed of the identity of the candidate oils,” NAD stated. “The challenger’s [BP’s] expert determined a 0.9 percent difference in power between the oils, which did not rise to the level of statistical significance, and is well below the 3 percent claim made by the advertiser.”

    SwRI did additional tests to independently determine the differences in fuel economy, emissions data and engine temperature between Royal Purple and Castrol motor oils. According to SwRI, “there was no statistically significant difference between the fuel economy, emissions data or engine temperature between the two candidate oils,” NAD said.

    Following its review of the non-anecdotal evidence in the record, NAD recommended that Royal Purple discontinue the claims, “Reduces emissions up to 20 percent or more” and “Reductions in emissions of 20 percent or more” because the studies on which the claims were based were outdated and not consumer-relevant.

    NAD also recommended the advertiser discontinue its unsupported claim that Royal purple motor oil is “API/ILSAC Certified.” Noting that API and ILSAC licenses and certifications have many categories with different meanings, the NAD recommended that the company discontinue its claim that its synthetic oils are “generally ‘API/ILSAC Certified.’”

    In fact, no Royal Purple products are certified to current ILSAC specifications.

    The American Petroleum Institute licenses its trademarked Service Symbol, or ‘donut,’ for display on qualified engine oils, and also licenses the ILSAC ‘starburst’ logo for oils that meet the auto industry’s latest energy-conserving standards. In API’s online directory of licensees for its Engine Oil Licensing and Certification Program, Royal Purple has a total of 23 passenger car and diesel engine oil products listed, all licensed to use the API donut. Five of these may additionally display the words ‘energy conserving’ within the donut logo, but none of the Royal Purple products are licensable to the current ILSAC GF-4 specification and they cannot display the starburst logo.

    Royal Purple also voluntarily agreed to discontinue the claims, “most advanced,” “unsurpassed performance” and “unparalleled performance,” steps the NAD said were necessary and proper to avoid confusion in the marketplace.

    “While Royal Purple also believes that the tests and testimonials it supplied as evidence accurately portray the benefits of using its synthetic oil in a wide variety of applications, it defers to the NAD’s position that those tests and testimonials alone are insufficient to support specific performance attribute claims in consumer advertising,” the company said in its response to NAD. “... [Royal Purple] has already made changes to its advertising in accordance with the NAD recommendations and will continue to implement NAD’s recommendations and analysis in developing Royal Purple’s future advertising.”

    BP Lubricants did not return phone calls from Lube Report requesting comment on NAD’s decision. "

  16. #15
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