Advance Auto Parts offers the Chevron Techron 20-oz. Fuel System Cleaner
, model no. 65740, for $8
charges the same with free shipping for its Prime members.) Opt for in-store pickup
to avoid the $9.99 shipping fee. That's tied with our March mention and $12 under the lowest price we could find for a shipped bottle. It's designed for carbureted or fuel-injected spark ignition engines.