how to mix (100 octane race gas with 91 unleaded) to get 93 Octane?

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Old 06-28-2006, 04:48 PM
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how to mix to get 93 Octane

I work in Menlo park and there is 1 76 which sells 100 and 91. What is the correct amount to make 93 octane for a full tank of 13 gal.

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Old 06-28-2006, 05:03 PM
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Old 06-28-2006, 05:08 PM
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3 gallons of 100 and 10 gallons of 91 makes 13 gallons of 93.08 octane.

Here's a tool you can use. http://home.comcast.net/~davephoward/Torco.xls
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Old 06-28-2006, 05:17 PM
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i usually put 20 bucks of 100 and top everything off with 91, i wonder what that avg???

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Old 06-28-2006, 06:35 PM
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Originally Posted by A.V.E.
i usually put 20 bucks of 100 and top everything off with 91, i wonder what that avg???

-Ave

depends on how low you let your tank get.

When I fill mine I am adding about 13 gallons.

at $4.79 a gallon for 100 octane you should be around 94-95 octane.
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Old 06-28-2006, 07:30 PM
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Originally Posted by mcdrama
depends on how low you let your tank get.

When I fill mine I am adding about 13 gallons.

at $4.79 a gallon for 100 octane you should be around 94-95 octane.
LOL, at such expensive prices now a days, premium going for about ~3.30-3.45, it makes the 100 octane seem pretty reasonable, I remember at so cal station where they were $5ga; and regular gas was about $2/gal, quite a few years back of course, and that seems much less affordable :P
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Old 06-28-2006, 08:51 PM
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Originally Posted by A.V.E.
i usually put 20 bucks of 100 and top everything off with 91, i wonder what that avg???

-Ave
hey ave where do you get your 100?
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Old 06-28-2006, 09:28 PM
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SJ, willow glen area, off of almaden expressway.

i work in downtown so willow glen isnt too far away from where i work, so ill stop by there before work or if im heading to the thurs meet, its just the down street and ill fill up then.

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Old 06-28-2006, 11:52 PM
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hey how much is the race gas in menlo park? can you give the exact location?. thanks
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Old 06-29-2006, 12:40 AM
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Full tank of 91 and a can of Torco
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Old 06-29-2006, 10:34 AM
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Originally Posted by Bolshoi125
hey how much is the race gas in menlo park? can you give the exact location?. thanks
there is a 76 station on 84 close to the safeway; don't remember the exact cross streets. Will send them tonight.

100 octane was 4.4 and 93 was 3.7

That 76 station my be on the border of redwood city woodside and menlo park.
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Old 06-29-2006, 10:35 AM
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Originally Posted by mikkyo
Full tank of 91 and a can of Torco
torco hmm... how much will the octace be boosted by?
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Old 06-30-2006, 02:42 AM
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Originally Posted by specb
there is a 76 station on 84 close to the safeway; don't remember the exact cross streets. Will send them tonight.

100 octane was 4.4 and 93 was 3.7

That 76 station my be on the border of redwood city woodside and menlo park.

Thanks, what's 84? is it hwy 84? and what exit? or exact address if you don't mind.. thanks again
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Old 06-30-2006, 08:40 AM
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I believe it is at:

King's 76
975 Woodside Rd
Redwood City, CA 94061
(650) 364-9620
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Old 06-30-2006, 09:15 AM
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I filled up just over 10 gallons last night of 100 octane. So now I must have just over 96 octane.
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