Justice Brothers fuel injection cleaner, grey cap one. Incredible stuff, will take equal parts water out of your fuel, add power, not hurt anything. Sold as OE also in different cans for fancy high end sports cars like Nissan Z cars. Dump in tank or atomizer inject. 2 pints per 5 gal adds 5-8% more power, track guys use it. One pint in 5 gal will guarantee a emissions test pass Stupid sales network, hard to find..