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Discussion Starter #1
Just noticed VP has C20 non oxygenated, and oxygenated HP100, MS109E (is that ethanol based? I remember the original MS109 was some nasty stuff to breathe and didnt make as much power as q16 in a 11:1 NA motor) and Performance Unleaded

Which one would make most power in a NA setup and which in a nitrous/boosted setup and is it a gas based or ethanol blend that would require enriching??
 

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Discussion Starter #2
Oh and forgot about the Unleaded Extreme which the VP dealer here has but no info on VP site anymore other than 110 motor octane 111 research
 

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Weirdly...MS109 at MTBE a while back, then they changed to ETBE...then back to MTBE....

What was that all about ?

Some googling might suggest that could be part of the naming structure ? ie E does not containg MTBE.

Although the drums a friend got loaded with just stated MS109 in both cases. First batch were MTBE, with stickers to that effect, the second batch did not. It had a different part number, and the non MTBE stuff had a really pungent smell.
 

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Weirdly...MS109 at MTBE a while back, then they changed to ETBE...then back to MTBE....

What was that all about ?
Just seen this. But they actually make both.

Use of MTBE fuels are restricted in some states. But from what I remember and talking to the fuel blenders at work, it's a much better oxygenate than ethanol.
 

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Discussion Starter #8
Lot of bike guys run the ms109 it seems, its been around 10-15 years at least. I never liked the stuff myself, E85 made more power

Im mostly interested in the newer fuels
 

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So no one has any info on actualy using these fuels?
I haven't used any of the fuels listed, but I did run Shell URT Advanced at one point. They no longer sell it, but I think one of the unleaded Gulf fuels may be the same thing.

Overall, I liked the fuel. Plugs were a little hard to read, compared to leaded fuel.

My primary reason for switching to something else was convenience. A Sunoco dealer opened up a few miles from me.
 

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With the Australian Federal Govt banning leaded racing fuels from 1st of July 2019, we have had Sunoco in the USA designing some Unleaded replacements for the current Leaded Fuels.

I can't speak for VP & ERC, but the Sunoco Fuels will be available worldwide, not just in Australia.
 

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I haven't used any of the fuels the OP listed, but I run Gulf Mach 116 unleaded with good results. I have a wideband in each bank, so the unleaded is a plus. This is a nitrous application so a non oxygenated fuel fits the bill too. Specific gravity is pretty close to pump fuel as well. Only downside is price.
 

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I have been looking for the SDS sheets for the Gulf 116 & Fuse HF 125 to see if they are what they are advertised as, anyone have any links?
 
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