GM Fuel System Treatment Plus
$13.99
This product is currently out of stock.


Add one 12 ounce bottle to a full tank for best results.






$13.99
This product is currently out of stock.
Add one 12 ounce bottle to a full tank for best results.
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I had really bad performance issues after my tu ne. Used a bottle of fuel treatment & started getting better results after running out 1/2 a tank. Blew out small amounts of black smoke from my exhaust. Now my engine idles & runs really smooth. Car runs much stronger now. I was getting a knock code before & now it's gone. Gained +2-3 mpg & it's still going up a little. Overall it's a good product & I differently recommend this it with a smile. :grin: