Does techron reduce octane rating?

[oil pan 4]

I noticed with my old 1999 dodge beater 5.2L that holding it on the floor I was getting some pinging above 4,000rpm in 3rd gear. Through 1st and second at wide open throttle I didn't hear it.
Hadn't noticed that happening before.
Always get regular gas from the same ethanol free place.
Only difference was I dumped in a bottle of techron fuel system cleaner for that tank of gas, between 2 and 3 weeks ago.
I filled up today, added 12 gallons to the 22 gallon tank and only drove 3 miles home, didn't try running it hard.
If techron reduces the octane rating I can just fill up with premium gas when I dump in the techron.

 

[eljefino]

When I had my Cadillac Cimarron it didn't ping if Techron was in the tank but otherwise could.

That era dodge was good at burning oil in the top end, causing pinging.

 

[twX]

There are some studies showing that at high doses, PEA cleans combustion chambers and reduces knock, while at lower doses, it can increase combustion chamber deposits and cause more knock.

I datalogged knock events after using a PEA cleaner and it seemed like this was the case for my engine. I wrote about it in this thread.

 

[oil pan 4]

There are some studies showing that at high doses, PEA cleans combustion chambers and reduces knock, while at lower doses, it can increase combustion chamber deposits and cause more knock.

I datalogged knock events after using a PEA cleaner and it seemed like this was the case for my engine. I wrote about it in this thread.

Superb.
So it's absolutely 100% possible.
So I'll run PEA cleaners at less than a full tank, say 3/4 to half in the case of my dodge and I'll run the tank of cleaner till the fuel light comes on to make sure it's pretty much all gone when I refill.

Maybe run it down to a 1/4 tank, dump in the PEA, add several gallons of premium to hopefully boost octane, stir it up and bring me to around half full.
Premium is a dollar more gallon.
I'll bring the lawn mower gas can to catch that first 1 to 2 gallons of "premium gas" that flows out the shared nozzel.
As I've confirmed the dodge runs a rudimentary no return fuel system when I dropped the tank to replace the fuel pump earlier this year. So mixing is a good idea and adding premium gas is also probably a good idea.