Good Day…I’m a long time Opti-2 user in all of my two cycle products…a perfect product. I read somewhere that you can actually use the two cycle mix in a four cycle engine without causing any damage. Is this true? Also, just a note here to praise the stuff. I recently crashed a large model aircraft which completely demolished it including the 3.2 cu in gas motor which literally had 250 hours running at full throttle. When we recovered the pieces and were able to take what was left of the motor apart, we were very pleased to see that Opti-2 has kept the insides sparkling clean for many years! Thanks.
