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Discussion Starter #1
Hey i run VP U4 race gas ....... i read its very sticky but very good. i took off my air filter off today and did notice it look gummy in there but very very clean. My question is how many of you run U4 ...... also is there better fuel to run, and is it a bad to change when this bike has always had U4. any opinions are welcome! thanks guys! Bike never needs choked ever and always starts ice cold on 2-3 kick.
 

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hopefully you are using the newest grade of U4.... its U4.4 it helps with the gumming up problem of U4 and U4.2......



I run U4.4 with no problems.
 

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Jetted properly 91 pump gas will run the best. If your running a HIGHER octane you will start to lose power. Don't waste your money on race gas, unless your buying it for the smell...lol
 

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U4.4 is only like 98 octane.... its not used for gain in power by octane but by oxygenation as well as the addition of lead as a lubricant.... but to each his own. I LOVE THE SMELL!
 

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Rich guys... just put a 20 dollar bill in your gas tank every time you fill up, you should get the same results.. lol
 

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Discussion Starter #9
Fully mod 143 rocker roller it runs great with U4 I just want the best gas for my bike I can get without having problems switching so I figure up grade to better VP is tif best way. And as for 20 bucks a fill up ill handle that its just money and it smells better coming outta my bike I like to make sure 2nd place least has something good to smell! Hahaha
 

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burch753 said:
U4.4 is only like 98 octane.... its not used for gain in power by octane but by oxygenation as well as the addition of lead as a lubricant.... but to each his own. I LOVE THE SMELL!




4.4 is 103 octane,btw , here we run ethanol free marine grade high test and mix in some methanol,for smell and blue flame on rev/lim
 

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Discussion Starter #11
do you always store your VP in the 5 gallon metal jug or do you throw it into a VP race can? I had 2 gallons left so i filled up a 2 1/2 gallon can was sure if i shouldve left it in the can or if it matters.
 

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jns855 said:
do you always store your VP in the 5 gallon metal jug or do you throw it into a VP race can? I had 2 gallons left so i filled up a 2 1/2 gallon can was sure if i shouldve left it in the can or if it matters.


Need to store it in metal can, plastic jug breaths to much and your fuel will get old quicker.
 

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phatfiddy said:
Rich guys... just put a 20 dollar bill in your gas tank every time you fill up, you should get the same results.. lol


Jealous much? :)



Seriously though.. Race fuel has a lot of advantages. If you don't need the octane, don't buy it. I generally run 98 octane race gas and I notice the bike runs much better. Plus I can afford the smell.
 

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sweetjeep said:
Jealous much? :)



Seriously though.. Race fuel has a lot of advantages. If you don't need the octane, don't buy it. I generally run 98 octane race gas and I notice the bike runs much better. Plus I can afford the smell.




Nah not jealous. If your bike is jetted correctly pump gas should run excellent. The only advantage I see to running race gas is knowing the gas is fresh and new. Sometimes pump gas could be older or not as 'clean'. Also, you want to run the lowest octane possible for your engine. With higher octane gas you'll start to lose power. Also, for those who mix race gas with pump gas your defeating the purpose of running race gas ;)
 

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92 octane pump gas in the mini. VP110 in the 2-smoke 250. Thare's a place here that sells VP at the pump for $6/gallon. I only run race gas for ease of maintainance. I can let the bike sit for a year and know it'll fire right up with VP in it. VP110 or C12 smells really nice, especially if pre-mixed with castor-based oil. Like toasted almonds.

U4 on the other hand, smells naaasty IMO. I can't believe you guys like that smell. And if you don't drain your carb, U4 leaves that gummy goop in it, worse than the crappy "ethanolized" pump gas does.
 

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Discussion Starter #17
I'll run best VP i can get my hands on bike has had nothing but VP in it i wont change it i just wanted to know the updates on the newer makes of VP right now sounds like U4.4 is what i need. Is U4.4 as sticky as U4?
 

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jns855 said:
I'll run best VP i can get my hands on bike has had nothing but VP in it i wont change it i just wanted to know the updates on the newer makes of VP right now sounds like U4.4 is what i need. Is U4.4 as sticky as U4?




Why do you run race gas?
 
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