So if fuel never touches the back side of valves and the ports how could it clean them?Supplied by CHEVRON . States on front and back of bottle . Use TECHRON 10 once bottle 1 or 2 times a year . Try to use TOP TIER gas as much as possible for the '18 ACCENT and its 1.6 Ltr. w/ D.F.I.. The 20 ounce bottle ( pictured ) would be a double dose of TECHRON 10 ounce for the ACCENT and its 11.9 gallon gas tank . KIA fuel system cleaner is the same as the HYUNDAI .
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