Can you mix 112 gas or a relative octane rating on a TPI without doing any damage to the sensors, valves, and etc.

This DOES NOT apply to emission legal TPI's.
iex. Cat. Convertors and EGR.

 

Well, assuming the 112 is unleaded if you mix it with 93 you're basically creating (112+93)/2 octane or 102.5 octane rating with the formula you can look at on any gas pump. All it is going to do is prevent detonation, so it's not going to harm sensors in the least. If it's leaded thats different, and it can damage sensors - it will absolutley destroy an o2 sensor. May I ask why you are going to do this?

 

i was just curious. Would it make any difference though? Other than taking away detonation?

 

It may not be as simple as the math earlier indicated.

IIRC, years ago I read an article in some rag that running 1/2 and 1/2 (or some combo) could actually increase the octane number..i/e the higher number would nicrease.

Dunno if it's my fading memory, or fact.

 

The math above it not correct, well it could be if a 50/50 mixture was used.

Here is the correct way to calculate the octane.

assume:

Fuel 1 = 93 octane
fuel 1 gal = 3

Fuel 2 = 112 octane
fuel 2 gal = 5

New octane = (fuel 1 * fuel 1 gal/total gallons)+(fuel 2 * fuel 2 gal/total gallons)

New octane = (93*3/8)+(112*5/8) = 104.875 octane

With a 50/50 mixture the above equation would work out.

Hope this help you out. You want to run the min octane to suite your specs for best performance.