I've read in a few (reliable) places (that I've lot the bookmarks for) multiple rings are more to allow for bad break in and extra longevity. and double up to cover the gap in the ring
as for the coolant, the metro never used a GM engine and was years from being bought by GM in 91. if anything, it oughta be toyota red coolant.
I like the cam comparison. XFI is a lot more aggressive looking.
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-Russell
1991 Toyota Pickup 22R-E 2.4 I4/5 speed
1990 Toyota Cressida 7M-GE 3.0 I6/5-speed manual
mechanic, carpenter, stagehand, rigger, and know-it-all smartass
"You don't get to judge me for how I fix what you break"
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