Hawk36

I've put both 87 and 93 in my NA with no difference. Go with the less expensive stuff unless you see a performance difference.

ljd-924SE

the owner's manual for my '88 924S sport edition calls for 95 RON or 90 AKI. i guess it's because the 88 sport edition received a compression ratio bump up to euro spec of 10.2 to 1. so i've been using premium since i bought her.