• What kind of fuel do you use?
  • What kind of fuel do you use?
  • What kind of fuel do you use?
  • What kind of fuel do you use?

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  1. #16
    Member gmc_kurt@yahoo.com's Avatar
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    Default e-85 is a good engine cleaner

    i have always been told by gm wizards that if you put in 1/8 of a tank of e-85 and fill the rest up with 91 hightest, your engine will always burn clean. i have been doing this in my vette for 3 yrs and it runs as good today as it did comming home from bowling greene..we have had e-85 in chicago for 3 years.

  2. #17
    Member njlouc's Avatar
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    Default

    Using a 17 gal tank - close enough on a c5 - that comes to 19% ethanol since the remaining 7/8 tank has 10% also.
    BUT I think they meant that the reamining 7/8 would be without ethanol, thus giving ~11%. This is about as much as the often mandated 10%. It seems to make no difference if you just fill up with your "91" at 10%.

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