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Old 08-01-2020, 11:14 AM
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Lucas Oil octane booster

Been researching Lucas Oil octane booster vs Sunoco 110 race fuel and decided to come here and get some meaningful answers. I run Sunoco 110 in my race car and was thinking about a mixture of 15 ounces of Lucas Oil octane booster with 5 gallons of 93 octane unleaded but can't arrive at a octane level this would produce due to conflicting statements on the net.

I am aware that the race fuel is a better option I'm just curious.

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Old 08-01-2020, 11:59 AM
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I think you have to know what chemicals are in the pump gas to raise octane, when the chemicals reach a saturation they stop providing any octane increase. I wouldn't trust the opinion of anyone not willing to stand behind that opinion, somebody like Lucas.
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Old 08-01-2020, 01:44 PM
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What issue are you having makes you want to change anything?
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Old 08-01-2020, 02:07 PM
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is e85 an option?

I can buy it at a station down the street, was $1.40 last I noticed.
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Old 08-01-2020, 02:34 PM
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Quote:
Originally Posted by lmsport View Post
is e85 an option?

I can buy it at a station down the street, was $1.40 last I noticed.
I'd have to change the entire fuel system to use E85.
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Old 08-01-2020, 02:35 PM
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Quote:
Originally Posted by johnsongrass1 View Post
What issue are you having makes you want to change anything?
No issues, just curious and trying to save a few bucks over race gas.
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Old 08-01-2020, 04:12 PM
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Quote:
Originally Posted by Fang16 View Post
No issues, just curious and trying to save a few bucks over race gas.
How many thousands of dollars do you have invested in your motor and you're trying to save a few bucks on fuel by using snake oil fuel additive ?
I looked, but couldn't find anything printed about how many whole or fractional points of octane they are claiming to raise the fuel. They talk about ---OTHER--- fuel system additive manufacturers and how they are raising the octane by 1/10th of a point with a certain quantity of their product, but cannot find anywhere that Lucas makes any such statement. They talk about RESULTS that have been achieved, but make no statements about what other changes were made at the same time as the addition of the snake oil.
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Old 08-01-2020, 05:04 PM
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Fargin' Snake Oil from a carpet bagger (sounds opinionated ehh? )

When they are talking raising 'points' of octane they are referencing is .1 of an octane. So 5 'points' of octane raises your 93.1 (pump 93) to 93.6. Not worth the bottle it's put in.

If your tune is setup for Sunoco 110, the bite the bullet to either keep buying the 110 or change the fuel system to handle E85.

My two cents

p.s. - TI is spot on
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Old 08-01-2020, 08:18 PM
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It's very unlikely you will have to change the whole system if your already on Sunoco 110.
Tell me what have and we'll take a look and see whats what. Saving $6 a gallon goes a long way to a few changed for E85. A $600 carb is only around 4 tanks of 110.
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Old 08-02-2020, 06:22 AM
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Quote:
Originally Posted by johnsongrass1 View Post
It's very unlikely you will have to change the whole system if your already on Sunoco 110.
Tell me what have and we'll take a look and see whats what. Saving $6 a gallon goes a long way to a few changed for E85. A $600 carb is only around 4 tanks of 110.
I was just curious. I wanted to get some answers from men that have a respected opinion.

We are building a E85 race truck now and may go to E85 on this car this winter as I am also thinking fuel injection.
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Old 08-02-2020, 04:37 PM
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Quote:
Originally Posted by Fang16 View Post
I was just curious. I wanted to get some answers from men that have a respected opinion.

We are building a E85 race truck now and may go to E85 on this car this winter as I am also thinking fuel injection.


E85 is a great thing and it's cheap. The issue is the inconsistency. I've found all of the local stuff to me is 70-72%. I'm not running a content sensor and just keep track of the fuel with full anticipation and readiness to change the tune if I get some sub 60% stuff. Of course I'm using EFI that is self correcting (to a point). I can flip some numbers in the timing table in a minute or two and be alright.

I know most of your stuff is carburated implying hard to change the tune on the fly and no self correcting. The solution to that is buying E85 - E98 by the barrel, and up goes the price. I'm yet to find an economical barrel anywhere.

At that point the mixing race fuel starts looking to be a better price point. Especially if you're running a fuel cell that is 6-10 gallons.

Food for thought.
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Old 08-02-2020, 06:35 PM
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E85 has a much wider window of around 6-8 stoic vs 12.5 for gas as well so that cuts down on some of the metering calibrations adjustments if needed.
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Old 08-02-2020, 08:09 PM
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Nobody has mentioned AvGas so far?? It's right around $4/gal near me right now, Self Serve.

This is the only Race Fuel concentrate I know of that works...but it ain't cheap, it take 64 oz to raise 10 gal on 93 up to 107 octane....that's $45 worth of the concentrate if bought in 32 oz cans.
You can get it by 5 gallon pails too, but you have to call for price. Likely to be more economical. Still not cheap.

https://torcousa.com/products/accelerator

I've seen in mentioned somewhere of it being available under another name $2-3 per quart cheaper on Amazon, but don't remember the source or the name.
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