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Cadillac Escalade and ESV Forum - 2015+ Discussion, Does new 6.2 require 92 octane? in Cadillac Escalade Forums; Originally Posted by MoistCabbage So to answer the original question... Again...NO THE TRUCK DOES NOT REQUIRE PREMIUM. Go ahead and ...
  1. #31
    hcvone is offline Cadillac Owners 10000+ Posts
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    Re: Does new 6.2 require 92 octane?

    Quote Originally Posted by MoistCabbage View Post
    So to answer the original question... Again...NO THE TRUCK DOES NOT REQUIRE PREMIUM.

    Go ahead and post those dyno results of 4 octane points making a 40 HP difference. I'd love to see them.

    You must have a reading problem among other issues, here is my post from above, that is now below, I said on a dyno I can show you what different octane does for performance. Then I started a new sentence because you were the one you said that you can not feel a 10% difference in power, and I said 10% on an Escalade is 40 hp, and if you can not feel 40 hp you are numb. The computer dials back power with lower performance fuels



    You are 100% WRONG, stop by our dyno and I can show you want difference octane makes, even dropping 5 octane points make a difference in performance. If you can not feel a 10% difference in performance then you are numb, 10% of a 400 hp engine is 40 hp, you can't feel that? Please. This is from page 9-51 of the owners manual

    Recommended Fuel
    "Use premium unleaded gasoline
    meeting ASTM specification D4814
    with a posted octane rating of 91 or
    higher. Regular unleaded gasoline
    rated at 87 octane or higher can be
    used, but acceleration and fuel
    economy will be reduced, and an
    audible knocking noise may be
    heard."

    Nice Ride likes this.

  2. #32
    George C's Avatar
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    Re: Does new 6.2 require 92 octane?

    Respectfully.
    I'm guessing we can call each other WRONG all day long, but all I am offering is an opinion. Since you have offered actual printed data which demonstrates there is indeed a difference in the same 10.5 to 1 or lower compression engine, please take a minute and post it. Thanks.
    I'm not looking to prove someone right or wrong, I am really interested in seeing the 5 point power and torque differences on a lower compression engine if they do indeed exist. Until then, I'm very skeptical.

  3. #33
    OneStepAhead is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    For me I'm going to stick with what the manual suggests, and that's premium. Even if there is no real world difference psychologically I'd still notice one. If it was a dollar a gallon difference maybe I'd reconsider, but give I only put 7000 miles a year on it amounts to nothing.

  4. #34
    Nihsel10 is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    Well it varies from each person.

    If you use 87, you see a decrease in throttle response. Premium is mostly recommended, like the manual says. The throttle response is better when running on premium. Midgrade is ok because is just a mixture of regular and premium.

    Exception of using regular, imo, are 1) you are leasing the vehicle 2) don't like to put the "pedal to the metal"/ like slow acceleration, or 3) keep changing vehicles every 1-3 years

    Most people prefer sticking with what the manual says, which is ok. The beauty of American engines is that it can run on anything and still give amazing American muscle power, great growl, and small amount of hp loss. Unlike in European cars, premium is required otherwise the warranty will be voided (I presume) and the cars will run like poop.

    Question is that, if you paid say 80k+ on a vehicle, would you really want to put low grade gas?

    I use regular when the gas prices go way to far up (when premium hits 4+ bucks), as soon as it lowers (below 4 bucks) I use premium. Most of the premium is used on the H2 and Platinum because they aren't making the Vortec engines no more and I am keeping them in the long term.


    MPG changes depending on your driving habits. If you go to the DIC and find the Avg MPG V8/V4 section, it shows how much MPG you are getting when adding the throttle and letting go of the throttle. I love using it because it shows how much MPG i am getting when i am the highway, which is like 14-15. When i let go of the pedal and let it roll, I get like 70-99 mpg under V4.

  5. #35
    OneStepAhead is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    In disabled v4 on my vehicle and my MPG meter still sky rockets when I left off the pedal.

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    Re: Does new 6.2 require 92 octane?

    Why would anyone spend major bucks on an Escalade, Denali, etc. and then worry about fuel costs?? Makes no sense to buy a 400+HP engine and then scrimp on fuel. If you have to ask what mileage it gets you probably can't afford it.

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    Nihsel10 is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    If it has a lower compression ratio, then it would be reasonable to use Regular gas. Since the 6.2L Ecotec has a high compression ratio, then premium has to be used. I am amazed that Cadillac didn't say "requires" on the 2015 or newer Escalade.

    I am ok with the fuel prices now and happily using premium since the prices have dropped to less than $2.90/gal. A while back when it was $4, I had to use regular. I have had no issues since I had to change my driving habits because of the gas change. Now, everything is back to normal and can treat my Platinum like an actual performance truck with good gas.

    On the chemistry side of it, there is not much difference between the two since regular has 13% more heptane (which is the actual cause of knocking because it ignites faster than octane) and 87% octane. Companies also what their cars to run on gasolines that has less heptane. Carbon buildup is usually caused by what oils are used since oils are needed to reduce friction between engine parts.

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    turnne is offline Cadillac Owners Connoisseur
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    Re: Does new 6.2 require 92 octane?

    Quote Originally Posted by Heebie View Post
    Why would anyone spend major bucks on an Escalade, Denali, etc. and then worry about fuel costs?? Makes no sense to buy a 400+HP engine and then scrimp on fuel. If you have to ask what mileage it gets you probably can't afford it.
    good point..on a retail purchase

    Unless its on a lease...that is a whole different story

    Warren

  9. #39
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    Quote Originally Posted by turnne
    good point..on a retail purchase Unless its on a lease...that is a whole different story Warren
    Um no it's not

    You still have to keep it up as if you owned it

    To each they're own I guess

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    Nihsel10 is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    Quote Originally Posted by the cadillac man View Post
    Um no it's not

    You still have to keep it up as if you owned it

    To each they're own I guess
    Funny story. My dad leased a Benz a while back. He was suppose to put premium since its required, but he was using regular the whole time. Surprising the dealer didn't void the warranty.

  11. #41
    the cadillac man's Avatar
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    Quote Originally Posted by Nihsel10
    Funny story. My dad leased a Benz a while back. He was suppose to put premium since its required, but he was using regular the whole time. Surprising the dealer didn't void the warranty.
    Fuel doesn't count (dealer wouldn't know unless they had it lab tested or was told)
    It's the oil changes and regular maintenance that I meant

  12. #42
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    Re: Does new 6.2 require 92 octane?

    Quote Originally Posted by the cadillac man View Post
    Fuel doesn't count (dealer wouldn't know unless they had it lab tested or was told)
    It's the oil changes and regular maintenance that I meant
    oh gotcha!

  13. #43
    VancouverCaddy is offline Cadillac Owners Member
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    Re: Does new 6.2 require 92 octane?

    You have the $$$ to buy a nice ride, spoil it with nice gas.
    Ethanol in gas is what ruins vehicles, less of it the better.

  14. #44
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    Quote Originally Posted by VancouverCaddy
    You have the $$$ to buy a nice ride, spoil it with nice gas. Ethanol in gas is what ruins vehicles, less of it the better.
    I agree 100% and speaking as a classic car owner the ethanol is murder on the carb and fuel system in them so think about it before you decide to pinch pennies on fuel

  15. #45
    Nihsel10 is offline Cadillac Owners Enthusiast
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    Re: Does new 6.2 require 92 octane?

    Ethanol will destroy the fuel lines and your engine.

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