[Big hammer]

I just had my Zenith carburetor apart, it’s been 5 years since I’ve had it off, the bowl metal is still shiny, it had some ( very little amount 1/4 of a thumble ) reddish brown rust dust floating on the bottom. Most of the time I put 4oz of MMO in a full tank of ethanol free gasoline unless I’am away from home needing fuel.