from the other microtech thread, u've also mentioned on maf-translator and pro models, i've previously emailed to all fullthrottlespeed.com's distributor which sells MAF products, and all of them replied...
I'm using Motul 4100 for my RX-8, and did an oil change the other day. Used my opened bottle of 3L, then wanted to buy another at the workshop, they dont have it in stock. I'm having quite a problem...