Originally Posted by elkapitan
Can I use a 30% on a .12 and . 21 nitro onroad engine? Some said that 20% is the highest nitro percentage for an onroad engine. Don't have any idea sorry. Just planning on getting into onroad
Engines are factory set for 25% for .21 and 16% for .12
Doesn't mean you can't do things different, but since you're not into fuel stuff...just don't !
I make my own fuel for on road use with 8% oil: 5% synt + 3% castor. But if you ask a thousand people you'll get two thousand different blends !
Without a solid experience I'd discourage you to make your own fuel. Just buy a bottle of a good brand fuel, and let your knowledge start from there.