Senior Moment Member
Join Date: Jun 2011
Location: West Vancouver B.C.
Thanked 134 Times in 129 Posts
Rep Power: 9
Re: atomic 4 mini explosion
Since lead has been gone from gas for more than 40 years I doubt if there are any valve seat inserts left on shelves that won't work with unleaded.
Incidentally, the problem was never with the valves, it was with cast iron seat erosion and it was a very slow process - 75K miles in bad cases.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.