Could you tell the difference?

Hi Ed -- I can't tell the difference!

I have been using 15% nitro fuel in all of my engines (2 & 4-stroke) sizes ranging from an Enya .09 to an OS 3.0 Gemini for over 18 years now. I use a custom blend from FHS, which is Red Max. The formula came from Clarence F. Lee; it is 15% nitro and 18% total oil of which 15% is synthetic and 3% castor. I used it in my YS .53, and still run it in my Lasers. As the saying goes, "It works for me!"

Cheers -- \_________Lyman Slack________/ \_______Flying Gators R/C___/ \_____AMA 6430 LM____ / \___Gainesville FL_____/ Visit my Web Site at

You will notice the difference in your four strokes. It may be too much nitro for the two strokes, though. Good for many heli engines.

I have been running 25% Omega in all my engines for about five years now and everything from LA15 to Saito 270T including YS91AC's really like it. Only thing I have had to do is adjust the plug heat range in some. The Saito 270T has been running since 1988 without even a set of bearings. I think the extra oil in Omega helps a lot with the heat dissipation. However, like Paul sez, it may make a difference (with lower nitro fuels).

Phil AMA609

Paul Mc> You will notice the difference in your four strokes. It may be too much