Best cleaner for lead exhaust residue?

I have been using "Oil Eater" for decades and it works very well and doesn't hurt anything. It is water based and biodegradable. I use it at home and at the hangar. I use it on fuelages, engines, floors and at home on the stove. Oil Eater wipes grease and oily things off quickly and easily.

Roger Lee wrote:

I have been using "Oil Eater" for decades and it works very well and doesn't hurt anything. It is water based and biodegradable. I use it at home and at the hangar. I use it on fuelages, engines, floors and at home on the stove. Oil Eater wipes grease and oily things off quickly and easily.

Thanks! But I'm not looking to clean grease and oily things as much as I am the lead residue. How well does it clean the white lead residue from 100LL exhaust?

I am not using 100LL in my Rotax powered aircraft, so I didn't check that in practise.... Anyway, my chemical background tells me that PbO, that is a main part of the yellowish residue, is soluble in alkaline solutions, so I may recommend to try a "cleaner" with ammonium (ammonia) additive, like glass cleaner or so....

PbO is also soluble in acid solutions, but those are highly corrosive to aircraft metal parts..... so do not try such cleaners.