I used the mixed fuel out of my boat ( I just drained the tank to switch to synthetic) and ran it in my 99 Jimmy? I dont mean just dumping 50:1 fuel in it, I mean if I had half a tank, and I put the 50:1 on top of that. I have 16 gallons in 5 seperate gas cans, and I dont want to waste it.<br /><br />I did not know that I had 16 gallons of fuel in my boat. The fuel guage sender was not working, and I had filled it up the last time I went out, but I ran alot, and I mean alot. I guess in 4 hours of running, my boat used 2 gallons of fuel??? Any whoo I really dont want to waste this fuel, had I known that there was that much in there, I would have left it in there and ran on it longer. But on the upside, I fixed my fuel gauge, and now it works...
<br />That would be about 200:1 I think. Iam not recommending you do this, but if you do, thin it out as much as you can...