2 Stroke fuel best options for max power.

AZIMM84
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AZIMM84
Edited Date/Time 11/17/2022 6:49am
Trying to squeeze every ounce of power out of a 125 give me your thoughts!

U4.4
Q16
MRX02 kinda out of my price range but?
VP 110 + Klotz Nitro additive.

Who has tried these
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BobPA
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BobPA 11/11/2022 1:35pm
11/11/2022 1:35pm
U4.4 would be my guess. Or whatever has the highest oxygen content. How much compression are you running? Pump gas engines make less power on excessive octane when the fuels are non-oxygenated.

Mix some nitro in there if want her to really go. But it is highly corrosive, and when they blow... They really blow
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bvm111
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bvm111 11/11/2022 1:36pm
11/11/2022 1:36pm
I have always had great luck with the VP 110 or C12… depending on if it’s modified. I can tell a difference even on non modified but you could get away with 50/50 premium if non ethanol as in my experience ethanol fuels are inconsistent in two strokes. I apologize but I don’t have experience with the others.
NSP139
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NSP139 11/11/2022 1:39pm
11/11/2022 1:39pm
Twisted development suggested VPR on my kids 250sx motor build and he loved it LOL
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TeamGreen
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TeamGreen 11/11/2022 1:41pm
11/11/2022 1:41pm
In a well maintained 2007 RM125, I’m enjoying REALLY good performance and engine life with T2 cut down to 50:1 with Pro6 (my T2 comes on a drum at 40:1; so, I think it out to 50:1).
Here’s the funny part: one day, all I had to “thin my T2” out was a 15 gal drum of Pro6…
It ran so good I was waiting for it to blow up! 😂

That was 2021 and I’m still running the same “mix” a year and a half later.

I would give U4 a shot; but, I’d do a very careful “plug check”.
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Alex814
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Alex814 11/11/2022 1:49pm
11/11/2022 1:49pm
VPR unless you have the money for MRX02. 30:1 or more oil.
dcg141
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dcg141 11/11/2022 1:51pm
11/11/2022 1:51pm
VPR is pretty much T2 not mixed. Its not super expensive and works great in 2 strokes.
FahQ
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FahQ 11/11/2022 1:52pm
11/11/2022 1:52pm
U4.4
VP113 (Oxygenated C12)
pcm_918
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pcm_918 11/11/2022 2:03pm
11/11/2022 2:03pm
100LL
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BobPA
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BobPA 11/11/2022 2:04pm
11/11/2022 2:04pm
Keep in mind too, oxygenated fuels do not last long. The good go fast juice that is mixed in the fuel evaporates relatively quick. So if you buy it, plan to use it.
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vetmxr
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vetmxr 11/11/2022 2:09pm
11/11/2022 2:09pm
100 LL Is what i've used and still use since the 80's
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MPJC
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MPJC 11/11/2022 2:09pm
11/11/2022 2:09pm
Max Power is fast with any fuel.
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AZIMM84
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AZIMM84 11/11/2022 2:14pm
11/11/2022 2:14pm
I thought if you left it in the metal can its good?
FahQ
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FahQ 11/12/2022 8:46am
11/12/2022 8:46am
100LL is a safe long lasting fuel.
It will not make any power over pump gas.

I currently am using 100LL mixed with pump 93 (e10) 50/50 for my two strokes. It’s the most cost effective for me currently.

T2 / VPR or VP113 will make more power.

U4.4 will make even more!
Beyond that prices go up.
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bh
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bh 11/12/2022 9:28am
11/12/2022 9:28am
If it’s a stock motor I would say T2. Otherwise ask your engine builder and not a bunch of vitards. That’s the opinion that matters most.

That being said if you are on a stock motor your money is better spent on clutches and tires than something like C12 or 110. Good pump gas can be found, I have a stand-alone 93 non ethanol pump near me and it is great. If you can’t seem to find good consistent non ethanol pump gas I would say T2 is your best bet. Just don’t make the mistake of running high octane fuel in a stock engine that is designed around 93 octane pump gas.


Just keep in mind to get the most out of any of these high octane race fuels you need to have a motor built around it. Otherwise it’s pointless.
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sgrimmxdad 11/12/2022 9:40am
11/12/2022 9:40am
We are VP dealers and VPR will work, customers that have stock 2 and 4 strokes can use the same fuel. T2 if the bike is stock. If you have any engine work done run C12. No need for C12 if bike is stock.
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AZIMM84
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AZIMM84 11/12/2022 9:47am
11/12/2022 9:47am
The engine will be big bore fully race ported high compression
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sgrimmxdad 11/12/2022 9:50am
11/12/2022 9:50am
AZIMM84 wrote:
The engine will be big bore fully race ported high compression
You should ask you builder, I would think you would need at least C12!
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BobPA
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BobPA 11/12/2022 10:03am
11/12/2022 10:03am
U4.4 if it will be high compression. It is not cheap, but it smells like heaven.
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piscokid
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piscokid 11/12/2022 10:07am
11/12/2022 10:07am Edited Date/Time 11/12/2022 10:08am
AZIMM84 wrote:
Trying to squeeze every ounce of power out of a 125 give me your thoughts! U4.4 Q16 MRX02 kinda out of my price range but? VP...
Trying to squeeze every ounce of power out of a 125 give me your thoughts!

U4.4
Q16
MRX02 kinda out of my price range but?
VP 110 + Klotz Nitro additive.

Who has tried these
The first question I have is what mods have been done to the bike? Has the ignition been re-programmed? Until there is a base line, the recommendations are baseless.
GoggleFiend904 11/12/2022 11:01am
11/12/2022 11:01am
U4.4 is a night and day difference over c12 in my modded bikes. Worth the extra money to me
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BobPA
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BobPA 11/12/2022 1:51pm
11/12/2022 1:51pm
TeamGreen wrote:
In a well maintained 2007 RM125, I’m enjoying REALLY good performance and engine life with T2 cut down to 50:1 with Pro6 (my T2 comes on...
In a well maintained 2007 RM125, I’m enjoying REALLY good performance and engine life with T2 cut down to 50:1 with Pro6 (my T2 comes on a drum at 40:1; so, I think it out to 50:1).
Here’s the funny part: one day, all I had to “thin my T2” out was a 15 gal drum of Pro6…
It ran so good I was waiting for it to blow up! 😂

That was 2021 and I’m still running the same “mix” a year and a half later.

I would give U4 a shot; but, I’d do a very careful “plug check”.
Just curious why make it 50:1 instead of 40:1?
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motoxrocks
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motoxrocks 11/12/2022 5:57pm
11/12/2022 5:57pm
TeamGreen wrote:
In a well maintained 2007 RM125, I’m enjoying REALLY good performance and engine life with T2 cut down to 50:1 with Pro6 (my T2 comes on...
In a well maintained 2007 RM125, I’m enjoying REALLY good performance and engine life with T2 cut down to 50:1 with Pro6 (my T2 comes on a drum at 40:1; so, I think it out to 50:1).
Here’s the funny part: one day, all I had to “thin my T2” out was a 15 gal drum of Pro6…
It ran so good I was waiting for it to blow up! 😂

That was 2021 and I’m still running the same “mix” a year and a half later.

I would give U4 a shot; but, I’d do a very careful “plug check”.
BobPA wrote:
Just curious why make it 50:1 instead of 40:1?
Adding more gas to the pre mix.
CPR
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CPR 11/13/2022 3:02am
11/13/2022 3:02am
FahQ wrote:
100LL is a safe long lasting fuel. It will not make any power over pump gas. I currently am using 100LL mixed with pump 93 (e10)...
100LL is a safe long lasting fuel.
It will not make any power over pump gas.

I currently am using 100LL mixed with pump 93 (e10) 50/50 for my two strokes. It’s the most cost effective for me currently.

T2 / VPR or VP113 will make more power.

U4.4 will make even more!
Beyond that prices go up.
Yes 100LL doesn’t make more power in itself, but it does allow higher compression ratios and more aggressive combustion chamber shaping, which in turn produces more power.
100LL is also a comparatively cheaper alternative fuel that offers detonation protection, easy jetting and long bearing and piston life.
For the average Joe it’s easily one of the best fuel options for a two stroke motocross bike.
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ricko
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ricko 11/13/2022 5:16am
11/13/2022 5:16am
Renegade sx2
AZIMM84
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AZIMM84 11/13/2022 3:24pm
11/13/2022 3:24pm
No one has tried Q16 out? It has more oxygen and octane than 4.4
mooch
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mooch 11/13/2022 3:35pm
11/13/2022 3:35pm
Pretty much just 93 or 94 pump gas with my YZ250. It doesn't ping and it can go faster than I can Smile
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NSP139
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NSP139 11/13/2022 3:43pm
11/13/2022 3:43pm
AZIMM84 wrote:
No one has tried Q16 out? It has more oxygen and octane than 4.4
Q16 is for turbo cars! People need to understand their compression ratio and ignition for the right fuel
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AZIMM84
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AZIMM84 11/13/2022 4:20pm
11/13/2022 4:20pm
I've used Q16 for high compression nitrous motors, M1 for turbo stuff....
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1998CR_125
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1998CR_125 11/14/2022 12:46am
11/14/2022 12:46am
I run VP110 leaded with hp2 Oil and it runs great

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