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Finding High Octane Fuel or Additive??

Old 11-20-2006, 06:14 PM
Join Date: Oct 2003
Location: Lake Stevens, Wa
My Boats: 90 Cougar 25 MTR
Posts: 78
Default Re: Finding High Octane Fuel or Additive??

Good post. We can only get 87 on the water in the northwest. My motors need at least 92 or they will pop under load. I have been limited to runs were I do not have to refuel.
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Old 11-20-2006, 06:44 PM
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Join Date: Aug 2005
Location: 1000 Islands, New York
My Boats: 1997 Fountain 35 Lightening
Posts: 194
Default Re: Finding High Octane Fuel or Additive??

Where can I find a chart (or formula) that shows how much Torco additive is needed to bring 89 octane up 2 poinjts to 91 octane?

I can not fine this info on the Torco site!

I read that Torco leaded additive is no longer available. Just the unleaded. True?


Originally Posted by WildWarrior
We have also had real good luck using the 5 gallon Torco leaded additive,plugs look great .

When added to 190 gallons or so of 93 octane , it makes a batch of approx 99 octane fuel per the above ratio.

But be very care-full , when splashed it will instantly stain your gel coat and upholstery , it's extremely toxic liquid you should wear a mask and you definitely need to use gloves and a monster size funnel.

This season we pulled some boost out of our rigs to avoid the above hassle, if we couldn't get 93 at our Marina we would still be using it , it works!

I was always told that If the octane additive can be packaged in a plastic container your wasting your $ it's junk!
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Old 11-20-2006, 07:33 PM
Join Date: Apr 2006
Location: Dallas, Tx
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Default Re: Finding High Octane Fuel or Additive??

i believe the torco turns 93 into 107
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Old 11-20-2006, 09:12 PM
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Join Date: Nov 2002
Location: Bonita Springs, Florida
My Boats: 46 turbined Skater
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Default Re: Finding High Octane Fuel or Additive??

I keep two 5 gallon cans in the garage. A quart for every 20 gallons will take 89 and make it 93.

$148.00 for a 5 gallon can. If you do the math versus paying for 93 it is not that bad. The freight is a killer. UPS charges and arm and a leg to ship the stuff.
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