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Top Tier Gasoline

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Gregg, Mar 3, 2012.

  1. Mar 3, 2012 at 5:16 PM
    #1
    Gregg

    Gregg [OP] Well-Known Member

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    I just read an article in an automotive magazine and it recommended "Top Tier Gasoline" to keep your engine clean (more detergents). Toyota also recommends it according to their web site (www.toptiergas.com). I usually use Gulf out of convenience but it is not listed as a top tier gasoline. Exxon and Mobile are and I could easily use one of these instead. Does anyone have an opinion on this? Does it really matter? :confused:
     
  2. Mar 3, 2012 at 5:22 PM
    #2
    elmo7

    elmo7 Easily Replaceable Member

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    Propaganda? Why would GM want to promote certain brands of gas?

    [FONT=Verdana, Arial, Helvetica, sans-serif]WHOIS information for toptiergas.com :
    [/FONT] [Querying whois.verisign-grs.com] [Redirected to whois.corporatedomains.com] [Querying whois.corporatedomains.com] [whois.corporatedomains.com] Corporation Service Company(c) (CSC) The Trusted Partner of More than 50% of the 100 Best Global Brands. Contact us to learn more about our enterprise solutions for Global Domain Name Registration and Management, Trademark Research and Watching, Brand, Logo and Auction Monitoring, as well SSL Certificate Services and DNS Hosting. NOTICE: You are not authorized to access or query our WHOIS database through the use of high-volume, automated, electronic processes or for the purpose or purposes of using the data in any manner that violates these terms of use. The Data in the CSC WHOIS database is provided by CSC for information purposes only, and to assist persons in obtaining information about or related to a domain name registration record. CSC does not guarantee its accuracy. By submitting a WHOIS query, you agree to abide by the following terms of use: you agree that you may use this Data only for lawful purposes and that under no circumstances will you use this Data to: (1) allow, enable, or otherwise support the transmission of mass unsolicited, commercial advertising or solicitations via direct mail, e-mail, telephone, or facsimile; or (2) enable high volume, automated, electronic processes that apply to CSC (or its computer systems). CSC reserves the right to terminate your access to the WHOIS database in its sole discretion for any violations by you of these terms of use. CSC reserves the right to modify these terms at any time. Registrant: General Motors LLC Domain Administrator 300 Renaissance Center Mail Code 482-C23-B21 Detroit, MI 48265 US Email: domainname.admin@gm.com Registrar Name....: CORPORATE DOMAINS, INC. Registrar Whois...: whois.corporatedomains.com Registrar Homepage:www.cscprotectsbrands.com Domain Name: toptiergas.com Created on..............: Wed, Jun 16, 2004 Expires on..............: Sun, Jun 16, 2013 Record last updated on..: Tue, Jan 31, 2012 Administrative Contact: General Motors LLC Domain Administrator 300 Renaissance Center Mail Code 482-C23-B21 Detroit, MI 48265 US Phone: +1.3136654967 Email: domainname.admin@gm.com Technical Contact: EDS NNAM DNS Technical Contact 800 Tower Drive MS 4258 Troy, MI 48098 US Phone: +1.2482655000 Email: dnsmaster@eds.com DNS Servers: dns1.cscdns.net dns2.cscdns.net
     
  3. Mar 3, 2012 at 5:31 PM
    #3
    Dustyroades

    Dustyroades Well-Known Member

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    Sounds like a load of junk to me.
     
  4. Mar 3, 2012 at 5:42 PM
    #4
    the.sight.picture

    the.sight.picture Well-Known Member

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  5. Mar 3, 2012 at 5:48 PM
    #5
    KalamaKid

    KalamaKid Well-Known Member

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    same shit as everyone else
    I just use this stuff

    [​IMG]
     
  6. Mar 3, 2012 at 5:54 PM
    #6
    Burgman

    Burgman I KEEEEEL YOU

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    Not different grades of gas but different brands. I believe different companies use different detergents and those can be beneficial, now the real question is how beneficial?
     
  7. Mar 3, 2012 at 5:55 PM
    #7
    Doc35

    Doc35 Well-Known Member

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    Gasoline is gasoline, top tier may have a bit more additives to it. Personally I go for the cheapest gas except for Citgo, I refuse to give a penny to Chavez.
     
  8. Mar 3, 2012 at 5:59 PM
    #8
    Tylerm5000

    Tylerm5000 Well-Known Member

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    For the last time, higher octane rating means a harder to ignite fuel....You know, so the engine doesn't "diesel"... That's why piston airplanes run on it. The premium label used to mean that it had more additive in it AND higher octane-rated so that it was appropriate for premium car engines like high-compression and/or force induction cars.

    Now most companies sell gas with the same amount of additive in all the grades. Top tier or other...

    Top tier gas usually has a premium additive in it like Techron and it is a very good gasoline because it is manufactured with strict standards.
     
  9. Mar 3, 2012 at 6:01 PM
    #9
    Burgman

    Burgman I KEEEEEL YOU

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    Op is strictly asking about top tier brands and not higher grade
     
  10. Mar 3, 2012 at 6:07 PM
    #10
    worthywads

    worthywads Well-Known Member

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    Not likely.;)
     
  11. Mar 3, 2012 at 6:13 PM
    #11
    Doc35

    Doc35 Well-Known Member

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    This.

    If the uneducated truly knew the difference between octanes they'd realize how much money they were wasting.
     
  12. Mar 3, 2012 at 6:13 PM
    #12
    TacoAL

    TacoAL Well-Known Member

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    ... how do you want your water bottled? Makes all the difference in the world right?
     
  13. Mar 3, 2012 at 6:17 PM
    #13
    Burgman

    Burgman I KEEEEEL YOU

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    Not octane, this has nothing to do with octanes... Read the OP, he wants to know about the additives that different brand gas companies use.

    Not sure why reading is so difficult
     
  14. Mar 3, 2012 at 6:22 PM
    #14
    Ridgerunner

    Ridgerunner Well-Known Member

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    exactly-which is why I personally only use 91-so my truck can use all its power by not having to back off the timing to compensate for knock. I won't use anything else but Chevron or 76 here
     
  15. Mar 4, 2012 at 5:18 PM
    #15
    Gregg

    Gregg [OP] Well-Known Member

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    Thank you Burgman. This is not about octane. I only use regular 87 octane, premium offers no advantages and can sometimes be detrimental. I am just wondering if the brands listed in the Top Tier website are better because of more detergents. They claim to have them in all grades of gas.
     
  16. Mar 4, 2012 at 6:07 PM
    #16
    Ridgerunner

    Ridgerunner Well-Known Member

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    Not true at all. When you run 87 your knock sensors tell the ECU to retard the timing to prevent knock. You're losing power.
     
  17. Mar 4, 2012 at 6:11 PM
    #17
    Rich91710

    Rich91710 Well-Known Member

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    Only if the knock sensors detect knock.

    If the owner's manual does not recommend premium, it is a waste of money.
    If you are encountering knock on an engine spec'd for regular, you have a mechanical problem... cam or ignition timing, a hot valve, etc...
     
  18. Mar 4, 2012 at 6:34 PM
    #18
    Chris(NJ)

    Chris(NJ) Well-Known Member

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    Bingo!


    And fwiw, I've always used either shell or exxon and never had any issues w/ my motors.
     
  19. Mar 4, 2012 at 6:46 PM
    #19
    jackhart

    jackhart Well-Known Member

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    Sorry Frank, but the OP and Rich are absolutely correct. You are wasting money by putting higher octane into an engine which was designed to run on 87. It is only in the instance of running lower octane in an engine designed for higher octane that you lose power. In a nutshell, this is why:

    Many high-performance engines are designed to operate with a high maximum compression, and thus demand fuels of higher octane. A common misconception is that power output or fuel efficiency can be improved by burning fuel of higher octane than that specified by the engine manufacturer. The power output of an engine depends in part on the energy density of the fuel being burnt. Fuels of different octane ratings may have similar densities, but because switching to a higher octane fuel does not add more hydrocarbon content or oxygen, the engine cannot develop more power.

    Conversely, burning fuel with a lower octane rating than that for which the engine is designed often results in a reduction of power output and efficiency. Most modern engines are equipped with a knock sensor (which is a small piezoelectric microphone), which sends a signal to the engine control unit, which in turn retards the ignition timing when detonation is detected. Retarding the ignition timing reduces the tendency of the fuel-air mixture to detonate, but also reduces power output and fuel efficiency. Because of this, under conditions of high load and high temperature, a given engine may have a more consistent power output with a higher octane fuel, as such fuels are less prone to detonation.

    http://en.wikipedia.org/wiki/Octane_rating
     
  20. Mar 4, 2012 at 6:46 PM
    #20
    Rich91710

    Rich91710 Well-Known Member

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    Wife has 120k on her '04 Rav4, fed a steady diet of Sam's Club ethanol-laden crap.

    Smogged it last December and the levels were so low that I think the air coming out of that pipe is cleaner than the Los Angeles air going into the intake!

    Personally, I run Chevron 87.
     
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