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royal purple = increased MPG??

Discussion in '2nd Gen. Tacomas' started by yosh2000, Sep 14, 2009.

  1. Sep 14, 2009 at 8:36 PM
    #1
    yosh2000

    yosh2000 [OP] Well-Known Member

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    a few of my customers stated they switched to royal purple in their vehicles and gained anywhere from 2-6 mpg. now mind you, these are reliability engineers that are around rotating equipment (refinery pumps) all day long, so they are not stupid, they know their stuff and how machines operate.

    what do you guys think? anyone that has used this stuff in our tacomas?

    edit: just to be clear...one engineer said he gained 5-6 mpg on his older camry, one said she gained 4mpg on her rav4, and the final engineer said he gained 2-3 on his tahoe. this data is coming from people who track trends and reliability of machinery at a local refinery, so they know their numbers!
     
  2. Sep 14, 2009 at 8:39 PM
    #2
    Kyouto42

    Kyouto42 Iron Beard

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    Mom's all over this, royal purple will go out of business for doing unpossible.
     
  3. Sep 14, 2009 at 8:41 PM
    #3
    carmellocafe

    carmellocafe Begin With The End In Mind.

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    I've heard statements like this plenty of times, but I doubt it'll do anything more than say: "Mobil 1.":confused:
     
  4. Sep 14, 2009 at 9:12 PM
    #4
    yosh2000

    yosh2000 [OP] Well-Known Member

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    yea, im not one to believe all the hype of certain products, but these statements have come from some well respected engineers, and i know they are logical thinking people, so this is what give it merit...at least to me.

    im still trying to decide if its worth $50 to test it out...
     
  5. Sep 14, 2009 at 9:23 PM
    #5
    lawnrevenge

    lawnrevenge Well-Known Member

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    When I drove a 1969 VW bug I changed the gear oil and motor oil to Royal Purple based on these claims, figured it'd be worth a test. I went from getting 28mpg to 34 mpg consistently. I believe that the trans lube helped out most, going to synthetic multigrade. Also, since it was aircooled (oil cooled) the synthetic oil caused less friction and heat which meant the motor ran more efficiently. I haven't used it on my modern cars since 6 quarts is a lot more than 2.5 quarts, and watercooled, modern motors probably benefit less from super oil.
     
  6. Sep 14, 2009 at 9:23 PM
    #6
    08pretaco

    08pretaco Almost there

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    because of the nature of the oil dont you have to change purple royal more often as well, about every 2500 miles or so?
     
  7. Sep 14, 2009 at 9:26 PM
    #7
    lawnrevenge

    lawnrevenge Well-Known Member

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    No, IIRC like all other synthetics you have an extended change cycle. I don't do synthetics on my taco because I don't think it's worth it. I put synthetic mobil1 in my diff at 30k and now my truck is at the dealer getting a new diff at 54k. Thank God for warranties.

    Before anyone has to ask, yes I put in the right weight, type and volume of gear oil in the diff.
     
  8. Sep 14, 2009 at 9:28 PM
    #8
    Tacoyota

    Tacoyota senile member

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    I gained around 1 mpg when i went full synthetics, considering the variables , it could be 0-2 mpg gain.
    If they swapped old oil an air filter... basicaly a tune up they got say 3 mpg BACK, and gained 1 more from synthetic.... there is 4 mpg. Keep in mind new dino oils are better than they were 10 yrs ago,so I would be skeptical of any claim like 2-6 mpg. The 6 is the bait... the 2 is an "honesty" line that give credibility. My old Dakota showed no gains btw.
    I believe in synthetics, especially as a long term wear deterrent, but it hasn't seemed to live up to all the power and mpg claims i hear.
     
  9. Sep 14, 2009 at 9:51 PM
    #9
    yosh2000

    yosh2000 [OP] Well-Known Member

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    no, one engineer said he gained 5-6 mpg on his older camry, one said she gained 4mpg on her rav4, and the final engineer said he gained 2-3 on his tahoe.

    these are all real world gains from people who track trends and machinery performance and reliability for a living, so i trust their numbers!
     
  10. Sep 14, 2009 at 11:59 PM
    #10
    RAD

    RAD RAD@RECHELON/AESTHETICS Vendor

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    TOO MUCH

    ^
    Just like when you answer others who ask. You've answered your own question. You've got 3 Real Live Engineers who've boldly stated positive praises.

    Now you just got the try it out and tell us! :D

     
  11. Sep 15, 2009 at 12:07 AM
    #11
    4cyltacoma

    4cyltacoma Well-Known Member

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    idk about milage gains but it stays a little cooler and in the temp
     
  12. Sep 15, 2009 at 12:30 AM
    #12
    05sctaco

    05sctaco Well-Known Member

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    Amsoil or royal purple are very quality products. Yes they cost a lot more then Mobil 1 but if you search around on craigslist you'll be able to find amsoil dealers/preferred customers who'll sell you a few quarts for cheaper then retail. I use amsoil in my vehicles and also for my coworkers vehicles. I paided the same price for amoil xl, as mobil 1.
     
  13. Sep 15, 2009 at 6:13 AM
    #13
    yosh2000

    yosh2000 [OP] Well-Known Member

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    yea, just wondering if anyone here has noticed a difference w/ our specific trucks.

    did you notice any mileage gains?
     
  14. Sep 15, 2009 at 6:23 AM
    #14
    Tacoyota

    Tacoyota senile member

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    Man, I dont want to be mean, but the whole thing sounds like a commercial!
    Like:......Important poeple we need to respect and not question... buzz words like trust/for a living/scientificy analytical people..etc. Not to mention you know what we want and are telling us its here. While I'm convinced synthetics are better ( I'm using them btw), I dont see a COST BENEFIT over dino fuel, no ones toyota broke because they used quality dino oil,my dads 200k+ corolla for example. If I had 3 or so engineers showing me this, I would'nt ask anyone on TW (your opinions are not irrelevant and not what i'm implying btw) for their opinion on it, I would try it to and tell em what you found out.
     
  15. Sep 15, 2009 at 6:36 AM
    #15
    copernicus

    copernicus Well-Known Member

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    Could it be they subconsciously changed their driving habits to meet their expectations?
     
  16. Sep 15, 2009 at 7:25 AM
    #16
    08pretaco

    08pretaco Almost there

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    i guess we need someone to do the scientific method and figure out if this is really true? ill use the royal purple at my next oil change and see what happens but that wont be for another 2500 miles
     
  17. Sep 15, 2009 at 7:44 AM
    #17
    vbibi

    vbibi Well-Known Member

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    The way I see it is this: If there was any difference in the MPG gain,
    THE MANUFACTURER WOULD HAD MADE THE CLAIM ON THE LABEL.
    Just my 2c
    take care
    vbibi:(
     
  18. Sep 15, 2009 at 7:52 AM
    #18
    yosh2000

    yosh2000 [OP] Well-Known Member

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    now reading it it kind of does, didnt mean to.

    basically my question comes down to this: anyone use royal purple in their 4.0 tacos or fjs? in my original post, there was a range in increased mileage, just trying to see if anyone here has any first hand experience w/ RP in the taco engin, thats all.
     
  19. Sep 15, 2009 at 7:59 AM
    #19
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    I have heard RP breaks down quickly. I have read a few places that say that heat affects it more so than most other oils....I think RP's quality has dropped significantly in the last few years.
     
  20. Sep 15, 2009 at 9:50 AM
    #20
    vinnyvavoom

    vinnyvavoom Well-Known Member

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    I put the Royal Purple in my 2007 HD Ultra Classic. No noticable gain in milage of course, I did not change my air intake (KN), exhaust (Supertrapp) or ECM (Thundermax) go figure?
     
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