Im not blaming MMO for my CEL coming on but it sure seems coincidental and has me just a little puzzled. I was adding MMO to my '04 Altima at the same time and rate as the RX, as both cars have the same size fuel tank, and nothing has happened to this car as of yet. I've stopped using MMO in both cars for now. I may try again during the summer, but not really sure if I want to risk it. Should I do so, I'll report back with results. I see on the "Product Rebates, Sales & Promotions", that Wal-Mart has the smaller bottle, 12 or 16 oz, on sale or close out for .75 cents each. I'll check my local stores.
Thanks for your responces.