Treating raw cast Aluminum Intake, RainEx or...?
 

Some old timer told me that prior to install, treating a new cast aluminum manifold with several applications of Rainex would supposedly keep it from getting oil/fuel stained.

I don't want to polish it. Looking for low maintenance.

what do you guys think, or use / recommend?

thanks in advance!:cool:

Never heard of that. Some people powder coat them with clear

X2 for the clear powder coat. Oil and fuel wipe right off.

Gibb's

http://www.gibbstuff.com/

Another vote for powercoated with clear. Only thing i noticed was it loses the actual brightness of the new aluminum and gives it a tinge of gray after coating.
BB