ASSOCIATED_DRIVER

I have used 20% Nitro O'donnell before, but now, there are different kinds.

I have Nitro Trucks, ST and MT with engines AE.15, HPI K4.6, OS CZ.12, Hyper21 & XTM 24.7

Which fuel would you recommend for all my engines.
a: High Performance Racing Fuel - formulated for competition for cars and trucks with synthetic oil.
b: Speed Blend - formulated for Car model engine racing, with synthetic and castrol oil lubricant blend.
c: Ready2Run - for preassembled glow engines cars & trucks with equivalent 18%lubricant.
d: T-Blend - formulated for RTR Monster trucks with equivalent 18%lubricant.

They are all same priced at 9.99/Quart at Tower Hobbies.

My first pick is A, second pick is D.

proanti1

My Feedback: (2)

I use the racing fuel. I used to use speed blend, but the hobby shop I go to doesn't sell it any longer. The "racing fuel" is the original, and best for pretty much any application.

nitroholic

Mine love 30% speed blend,with purple medium pugs.

ThunderbirdJunkie

My Feedback: (3)

20% speed blend or race...the others are too oily and will F up your OWBs and make the engine more difficult to tune.

nitroholic

Really? So actually i should switch to 20% instead of 30 speed blend.I probably wouldn't notice a difference.You think?

ThunderbirdJunkie

My Feedback: (3)

Unless your small blocks are shimmed for 30%, run 20%.

378

My Feedback: (4)

I've used the RTR blend before. My engine loved it. As a matter of fact I broke my OS in on the stuff. I'm also going to grab a gallon of their 15% airplane fuel for my NexSTAR.

proanti1

My Feedback: (2)

If your engine is running fine with 30%, dont bother switching.

moe7404

i bought some 20% Nitro O'donnell . got it home and checked the S.G. with the hydrometer and it was right on the number.

GALAXY

I may be wrong,but the way it's worded on their site,the new Speed Blend is supposed to be better than the old High Performance Racing Fuel...

"Speed Blend Racing Fuel


It's all about time...

...and the EPIC changes it can bring. Today's fastest formula in nitro racing fuel? It's in bottles emblazoned with the bold orange "O" — marking brand new Speed Blend Racing Fuel.

O'Donnell Racing Fuel has always been the standard by which others are measured. The new Speed Blend formula takes it to the next level. Using superior ingredients, an advanced oil package and computer-controlled blending, Speed Blend delivers the extreme rpm and long run time that high-stakes competition demands. You’ll see a smoother idle and crisper throttle response, too!

You practice nonstop, tweaking and tuning to pare crucial seconds off your last personal best. Why? Because perfecting that winning formula takes time.

And now, it's time to power those racing machines with new Speed Blend Racing Fuel — the fuel that's as hard-core as you are."



I ran 20%Racing fuel in my RS4 and Savage and it was great.I switched to a gallon of 30% and loved the difference it made in speed. Now,after my 6 year break from RC,I go up to the lhs and see the Speed Blend.I planned to have them order a gallon of the 30% Speed Blend Friday so when I saw this thread I had to go look and see what was supposed to be the best.It's sure moving off the shelves pretty quick in the 20% flavor though.

bloodpuppy

Ijsut started my first gallon of speed blend 20% for my MGT 4.6.
Iwas using the traxxas fuel because its sold at 3 out of 4 LHS's BUTi found out it gumms the crap out of the 1 way