Instruct: Classify an Amazon review as either positive or negative.
Query: not an exact match

I had troubles with the original cap, so I decided to give a try to this one.Although it fits on the tank it does not on the holder that attaches to it. Meaning you have to keep it at sight when fueling and remember to put it back.Plus first time that I used it,gave a check engine warning. next few times it did not I give the benefit of doubt, perhaps it was my fault that I left it a little loose.