Octane Boost?

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AlabamaDan
Posts: 1750
Joined: Fri Aug 02, 2002 12:37 pm
Car: 2015 Infiniti Q70
1998 Infiniti QX4

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I have a theory on how we can save money on fuel. I just paid $40 to fill up with premium.

I would hope Q45tech would chime in.

Could we buy regular unleaded and simply add a bottle of octane boost? Now that I study on it, I wonder if it would be worth it. Let's see you'd save 20 cents a gallon, on 20 gallons....that would be a whopping $4.00 saved per tank. Doesn't really seem worth it does it. Oh well.

What about adding octane boost to our full tanks of premium, would it increase performance, MPG, or anything?How often do you use Octane Boost?


DAEDALUS
Posts: 5421
Joined: Mon Jul 22, 2002 8:50 pm
Car: 1990 Infiniti Q45

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After adding the octane booster to a full tank of 91, what do you suppose the resulting octane of the entire mix will be?

jdmfreak
Posts: 9350
Joined: Thu Jul 03, 2003 5:06 am
Contact:

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I dont know. Tell me.

DAEDALUS
Posts: 5421
Joined: Mon Jul 22, 2002 8:50 pm
Car: 1990 Infiniti Q45

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91.1

Q45tech
Moderator
Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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Always less expensive to buy premium, than to try to raise regular, even mid grade to premium levels.

Even regular has already been octane boosted with additives to allow refineries to use garbage oils.

The best oils only contain 30% by volume of the components of gasoline, the rest has to be synthesized and hydrocracked.

There is the law of diminishing effect, also additive contain oxygenates which lower the heating value of gasoline lowering the mpg. Premium is already 1-2% lower.

Believe me retail gasoline is already as additivized to the max to save on using crude oil.

Anything you buy at retail is already 5-10 times more expensive than the refiner would pay.

By the way the [104] octane booster you buy don't work in small quanties] and cause deposits in cylinders, on spark plugs and valves.

Premium only cost 4-5 cents per gallon wholesale more than regular.......the rest is transport and station cost from having to keep something in tanks that only sells 12% compared to combined regular and midrange.

AlabamaDan
Posts: 1750
Joined: Fri Aug 02, 2002 12:37 pm
Car: 2015 Infiniti Q70
1998 Infiniti QX4

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I'm with you that premium is the better way to go. I mean you're only saving $4 per tank. But it sounds like to me you're saying no to the octane boost.

Q45tech
Moderator
Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

Post

Study your petro chemical reactions..........to get by EPA they are increasing the research octane for a single non valid to real world test.

All that counts at 900 rpm and above is the MOTOR OCTANE TEST.

The BRAND NAME is 104+ doesn't have a thing to do with what it does.

"One of the problems with over-the-counter octane boosters is that you are not really sure how the chemical(s) is/are going to affect the real-world octane ratings. A very effective octane booster, MMT (methyl cyclopentandienyl manganese tricarbonyl), is the base product in both 104+ and 104+Super octane boosters. A can of this will treat about 22 gallons (83 litres), raising the Research octane of low-octane unleaded (91-93 RON) by about 3-4 and 4-6 respectively for 104+ and 104+Super. With premium leaded and premium unleaded (95-98 RON), however, this boost effect decreases to 0.5-1 and 1-2 respectively with 104+ and 104+Super. The reduction in booster/pump fuel ratio may not cause the octane rating to progress in a linear manner."

http://www.nsxprime.com/FAQ/Mi...s.htm

http://www.astm.org/cgi-bin/So...store

http://www.btinternet.com/~mad....htmlh ... m/...0.htm

Additing 4 -16 ounce bottles to 22 gallons of 87 octane could get you to 91-92 octane at about a 2.5% concentration.

20 cents x 22= $4.40, can you buy the stuff for $1.10 per 16 ounces or $8.80 per gallon including tax -----don't think so.

"MMT is ignored by refiners in the U.S. in favor of other antidetonants, mainly because it’s illegal in areas where RFG is required and a few refiners feel its long-term use might compromise engine life. MMT is shunned by car companies due to durability concerns about components in on-board diagnostic and emissions control systems and questioned by the EPA as a possible health hazard. Nevertheless, in 1995, MMT was allowed on the U.S. market with some restrictions after its manufacturer won a Federal court case against the EPA. At this writing almost no U.S. refiners add MMT to gasoline, but it is the key ingredient in a few canned octane boosters."


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