100LL 'low lead' fuel (bookmark figure is 0.86g/Litre Lead) Although it is still high lead by todays standards.
I can get the stuff pretty cheap here because I live near an Aerodrome, its 100MON octane *(about 109-110RON oct)

Anybody know what the effect this lead content would bring to the engine's health?

 

I have a friend who works at an airport so I can get avgas cheap too. I have a drum of 110LL at my house, it was like 170 bucks for 55 gallons through him including the drum deposit. Only thing you have to watch out for is avgas is very dry, so you need to add a lube like Marvel's Mystery Oil to keep it from drying out your injector seals and everything in your fuel system.

 

I believe the only side effect from leaded fuel is clogging cats, bad emmisions, and wideband/narrowband premature failures. It may do more harm, but I'm sure someone will chime in on that.

 

good info so far thanks..

bump