View Poll Results: What gasoline do you run?

Voters
16. You may not vote on this poll
  • Reg/87

    2 12.50%
  • Mid/89

    3 18.75%
  • Prem/91-93

    11 68.75%
  • Turbo Blue

    0 0%
  • None - diesel or electric

    0 0%
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 21

Thread: What gasoline do you run?

  1. #11
    Join Date
    Dec 2009
    Location
    Michigan
    Posts
    4,613

    Default

    Quote Originally Posted by Gas Man View Post
    The 85 is the % not the octane. Remember ethonal has a 110-114 octane rating.
    No I did not know that. So for E85 it means 85% ethanol and 15% gasoline? And then for 87, 89, 91, 92, 93 that is the octane rating? Damn I learned something new - gold star for Gasman today. So now either you can post up an explanation of octane or I can google it - I much prefer your knowledge over random google searches.
    Redline Superbike
    http://www.redlinesuperbike.com/



    Learn about photography: ATP Members

  2. #12
    Join Date
    Aug 2008
    Location
    Brownstown, MI
    Posts
    16,614

    Default

    octane is the resistance of the gasoline to detonation. The higher the octane number the more resistance it is to explode. The reason this is important comes into play with higher compression, more timing advance, and hotter spark, both of which cause more heat in the combustion chamber. The heat ignites the gasoline. When we increase compression or want to delay the spark with more timing the gasoline needs to resist exploding till the moment we want it to on the compression stroke. We don't want it to explode till just before the piston reaches the top of the stroke in the cylinder. So we have a smaller space to have a big explosion, which creates mega more down force which equals more power. So in a high power setup motor, 87 octane might explode (detitinate) let's say 1" before we want, that will create less power and make that pre-detinatoion pinging noise. So we run 93 in it to get that resistance to explode so we can get that piston up another .75" in the stroke. MO POWER.

    When you are dealing with ethenol, understand that all your mixes are different now. For the most part all your mid-grades are blended at the gas station pump. The gas station only has a regular and a prem tank.

    The gas being blended with Ethenol when the semi truck is filled, the same time the additives are added. Years ago they use to blend the Ethenol with 87 octane. But then they figured out well, that actually makes like 90 octane all the time. blend 90% 87 octane with 10% 114 octane = 89.7 octane = they gave away 2 points. So now they make 84 octane. Do the math there and it comes out to 87.

    So what some of these tuner guys are doing is... first upgrading all their seals to deal with higher octane.
    %% octane
    .85 * 114 = 96.9
    .15 * 84 = 12.6
    ==109.5 octane

    It allows them to crank up compression and timing and everything. They basically get turbo blue ($8 a gallon) octane for $2.50 a gallon. Now they may burn thru it twice as fast but that's still 30% cheaper.

    Your average mid sized sedan that can pull 26-30mpg on reg gas, will pull like 17-20 on E85. So while you spend less money per gallon, you eat those savings in burning it much faster, therefore going thru much more. The savings is null. So then ask yourself, why...???... If it's to save the world, you're failing.

    Gasoline is shipped via pipelines all over the country. Ehtonal isn't. it is transported from that refinery to trucking tank farms, like where I work, in semi at usually 10,500 gallons per truck (lower than our michigan 10 axle trucks that can acarry 13,500 gallons). So think about the diesel that it took to farm the corn, then to truck it to the reinery, then to haul it to the tank farm. It's not saving any world, is what I'm saying.

    Ok, I must go to bed now for I have used up many a brain cell on this lengthy explanation...
    ^^My $0.02 not yours^^
    -Chris
    aka Gas Man

    "Why pay somebody else to fuck up your bike?"
    "Custom don't bolt on!"

  3. #13
    Join Date
    Jan 2013
    Location
    Brownstown, MI
    Posts
    1,221

    Default

    Yea - seems I remember reading somewhere that in order for E85 to be worth using (economically) it needed to be 30% cheaper at the pump than what you would normally use due to the decreased mileage you get with the E85. I've had vehicles with the capability to use E85, but I can't ever recall it being cheap enough to be worth using. I've never tried it.
    My Favorite Rides:
    2016 Ultra Limited
    2010 Ultra Classic
    2003 Dyna SuperGlide
    1967 Bell UH-1 Iroquois(Huey)



    Most motorcycle problems are caused by the nut that connects the handlebars to the saddle.


  4. #14
    Join Date
    Aug 2008
    Location
    Brownstown, MI
    Posts
    16,614

    Default

    The only time it helps you is if you have a rental with that capability, fill it up before you return it...

    But it is bad karma
    ^^My $0.02 not yours^^
    -Chris
    aka Gas Man

    "Why pay somebody else to fuck up your bike?"
    "Custom don't bolt on!"

  5. #15
    Join Date
    Dec 2009
    Location
    Michigan
    Posts
    4,613

    Default

    Dood gasman that was awesome once again you don't fail to intrigue me with your intense detailed knowledge of gasoline. I had no idea. Learned another new thing today. I was assuming octane was the opposite - as in the ability to burn hotter (ish). Like liquor is 40 proof or 80 proof, etc.

    E85 is a joke - you brushed on some good points. I could add a million more - that much I do know. In the end it drives up our food costs and everything else. It's a joke and it's another profit invention by the elitist cabal marketed to the sheep under "it's good for the environment".
    Redline Superbike
    http://www.redlinesuperbike.com/



    Learn about photography: ATP Members

  6. #16
    Join Date
    Aug 2008
    Location
    Brownstown, MI
    Posts
    16,614

    Default

    Glad I could be of service....
    ^^My $0.02 not yours^^
    -Chris
    aka Gas Man

    "Why pay somebody else to fuck up your bike?"
    "Custom don't bolt on!"

  7. #17
    Join Date
    Jan 2013
    Location
    Brownstown, MI
    Posts
    1,221

    Default

    Quote Originally Posted by Mudpuppy View Post
    Dood gasman that was awesome once again you don't fail to intrigue me with your intense detailed knowledge of gasoline."
    And I always thought he went by the Gasman moniker because of his constant intake of Mexican food.
    My Favorite Rides:
    2016 Ultra Limited
    2010 Ultra Classic
    2003 Dyna SuperGlide
    1967 Bell UH-1 Iroquois(Huey)



    Most motorcycle problems are caused by the nut that connects the handlebars to the saddle.


  8. #18
    Join Date
    Dec 2013
    Location
    St. Clair
    Posts
    156

    Default

    Another problem with E-85 is the flex fuel vehicles themselves. There are many compromises made with the EFI tuning and injectors. If the engine was built to only run E-85 it would be better on fuel and maybe have some savings. Then the problem is fuel availability. Gasman is right, diesel fuel to plant it, pick it, truck it, make it and truck it again.....it just don't add up...

  9. #19
    Join Date
    Sep 2009
    Location
    southgate
    Posts
    3,380

    Default

    I did it one time. My tank was low and decided to give it a $20 try and couldn't make it out to ypsi. I said never again. 20 bucks of regular pump fuel would have gotten me farther.

  10. #20
    Join Date
    Dec 2011
    Location
    SE Michigan
    Posts
    3,139

    Default

    Quote Originally Posted by Gas Man View Post
    octane is the resistance of the gasoline to detonation. The higher the octane number the more resistance it is to explode. The reason this is important comes into play with higher compression, more timing advance, and hotter spark, both of which cause more heat in the combustion chamber. The heat ignites the gasoline. When we increase compression or want to delay the spark with more timing the gasoline needs to resist exploding till the moment we want it to on the compression stroke. We don't want it to explode till just before the piston reaches the top of the stroke in the cylinder. So we have a smaller space to have a big explosion, which creates mega more down force which equals more power. So in a high power setup motor, 87 octane might explode (detitinate) let's say 1" before we want, that will create less power and make that pre-detinatoion pinging noise. So we run 93 in it to get that resistance to explode so we can get that piston up another .75" in the stroke. MO POWER.

    When you are dealing with ethenol, understand that all your mixes are different now. For the most part all your mid-grades are blended at the gas station pump. The gas station only has a regular and a prem tank.

    The gas being blended with Ethenol when the semi truck is filled, the same time the additives are added. Years ago they use to blend the Ethenol with 87 octane. But then they figured out well, that actually makes like 90 octane all the time. blend 90% 87 octane with 10% 114 octane = 89.7 octane = they gave away 2 points. So now they make 84 octane. Do the math there and it comes out to 87.

    So what some of these tuner guys are doing is... first upgrading all their seals to deal with higher octane.
    %% octane
    .85 * 114 = 96.9
    .15 * 84 = 12.6
    ==109.5 octane

    It allows them to crank up compression and timing and everything. They basically get turbo blue ($8 a gallon) octane for $2.50 a gallon. Now they may burn thru it twice as fast but that's still 30% cheaper.

    Your average mid sized sedan that can pull 26-30mpg on reg gas, will pull like 17-20 on E85. So while you spend less money per gallon, you eat those savings in burning it much faster, therefore going thru much more. The savings is null. So then ask yourself, why...???... If it's to save the world, you're failing.

    Gasoline is shipped via pipelines all over the country. Ehtonal isn't. it is transported from that refinery to trucking tank farms, like where I work, in semi at usually 10,500 gallons per truck (lower than our michigan 10 axle trucks that can acarry 13,500 gallons). So think about the diesel that it took to farm the corn, then to truck it to the reinery, then to haul it to the tank farm. It's not saving any world, is what I'm saying.

    Ok, I must go to bed now for I have used up many a brain cell on this lengthy explanation...
    The other point about detonation (pinging) is that in addition to loss of power, if your engine pings alot over a long period of time, it can damage your pistons.

    https://www.google.com/search?q=ping...+piston+damage
    _________
    Roll away the dew...


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •