What is the best fuel mixture for a Carl Goldberg Eagle 2 trainer powered with a Magnum XLS .46?
A link to the best fuel would be appreciated.
Thank you.

I'd go with Omega 15% but thats because I like some castor in my fuel....Rog

Any good fuel with around 10% nitro will work fine. I'm partial to Coolpower but I'd run whatever is easiest to find at your local hobby shop.

As we've said on several occasions, most quality fuels are basically the same, and they all do just fine. It comes down to personal preference. I've used several different kinds of fuel and they all did the same thing.. flew the planes.

I've settled in on S&W 15% only because it's a "locally manufactured" product and is readily avialable at a reasonable price, and works just fine. But, that is not the only fuel around, just happens to be the one I've settled in on using. One main reason for that, like radio selection, is because it's what my instuctor used, it was available, and it works just fine. Sooo...

CGr.

The smaller Magnums will run just fine on 5% Nitro, saving you a bundle on fuel costs...

But this makes their already touchy needles a bit touchier.

Start out with 15-10% and get the engine tuned up and fully broken in.

You can later switch to 5%, or stay with 10%.

On my larger Magnums I fly with 5% exclusively.

I like a little castor oil(blend) as well. When I started RC the club I was in used 10%. I followed along happily and everything I had ran just fine on 10%. In my present club they mostly use 15% and so did I and every thing ran just fine again. Then fuel prices increased so I switched back to 10%.
Not much difference IMHO. But sometimes it is nice to borrow or lend a buddy a tank of fuel and if you use what "the gang" uses its kind of nice.

Mix your own fuel... it's easier than baking a cake and twice as fun.

Really, as long as it'll run your magnum it doesn't really matter - you're not running a high performance engine and any difference in performance will be minor at best.

Hi!
5% nitro! All sport engines run perfectly well on just 5% nitro!
10% or 15% nitro is just waste of money!

As a beginner the extra nitro in a jug of 15% might make it a lot easier to tune so you may get a lot more flying in . Iuse SIG fuel because it is great stuff and really convenient for me to obtain since it is just down the road. Our club uses almost exclusively 15%.

Agreed.

There is almost no point in running more ( at "normal" altitudes ) in sports planes, other than wasting the cash...
... that is once the engine has been flown a few times.

A 30% or greater savings per gallon too...