Advance Auto Parts offers the Chevron Techron 20-oz. Fuel System Cleaner, model no. 65740, for $8. (Amazon 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.
Advance Auto Parts offers several discounts via coupons, as listed below. Choose in-store pickup to avoid shipping fees, which start at $9.99. (Orders of $75 or more qualify for free shipping.) Deal ends July 4. The coupons: