I am going to do some private runs with some of my friends tomorrow. In Ensenada, Mexico of course But I was wondering is it ok to fill my tank with 110 leaded fuel if I still have a quarter tank of 100 unleaded in there?

 

You will end up with 106.7 Octane fuel in the Tank on mixing

 

Absolutely. I mix fuels all the time. As 4G64T said, it will lower your octane level to around 106.

 

After a while (I dont know how long/much) the leaded gas wrecks the 02 sensors
and of course if you had cats will clog them.

otherwise, if no cats and no 02 sensors....let er rip on straight leaded, mixed, or straight
unleaded!

MK

 

I don't have any cats or mufflers. Would it be ok for me to run 118 leaded? All my mods are in my sig.

 

You still have O2 sensors, correct? Marty is right; Leaded fuel will destroy them.

 

Should I be worried about the 02's? I thought even when you have no cats you still have to plug the bungs up?

 

To get the most out of high octane gas, you need a flash program. Stick with the unleaded gas, 109 octane is the highest unleaded I have seen.