I was always told if you start with a kind of fuel stick with that type. Not sure what the difference is. Just thought I would add that.

coolhand, that is very true. dont which fuels unless it is a fresh piston and sleeve.

-corey

Fuel is mainly preference. There is no such thign as a "BETTER" fuel. (unless its a crap generic one). Depends upon the user's opinion.

not so true ncazb. some fuels have more pur nitormethane and burn cleaner and some use synthetic additives as well as more or less castor oil. i would disagree and say there are better and worse fuels.

I think thats a old myth. I know some of the fastest guys in FL that switch fuels with no problem at all. If you are using a quality fuel to begin with i dont think it's a big deal. The real issue is switching % of nitro, say from 20% to 30%. I think thats more important. My buddy won the fl state series last year with with a tmaxx with a 2.5. He used at least 3 different fuels, dynimite, maxy's, & trinity. He got 10 gallons of fuel the the motor before he had to replace it. The moral of this thread is use a QUALITY FUEL.:D

I agree with the quality of fuel. I also agree with the %. I think it is important towhat you do to your motor as well when you run it.

A lot of people run there motors to lean, which hurts the motor. They also dont keep there air filter clean & oiled. That probably does as much or more damage to the motor than anything else.

my frained said he got 10 gallons outta his engine. Dunno how, but he said as long as u take care of it really well. Plus he had a special "BREAK IN METHOD" that he perfected. break in is very important

....??????i have a t-15 motor.....and im curious ......do you have to tune this one????:032:

You have to tune EVERY r/c motor, regardless of its size.

These tech tips by Ron Paris Should be required reading before operating a NItro engine.:028: http://www.nitrohouse.com/tech_tips.htm

Fuel Maxy's 30%:027:

im just wondering do you have to tune a t-15 motor???and if so is it a hassle

yes you do, and all nitro motors are a hassle.

my ruck has actually pritty easay tunning, all i need to do is adjust the throttle and the RPM and im ready to roll:018:

you dont mess with the carb? if your not your probably running it to lean or rich. it should be tuned every time its run....