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Red Line SI-1 Complete Fuel System Cleaner - Deal
Price as of June 22, 2026 — check Amazon for the current price.
Get This Deal →- ✓ Secure checkout on Amazon
- ✓ Fast shipping
- ✓ Price may change anytime
By Carlos Jurado · Updated June 21, 2026 · How we review
Why buy the Red Line?
- Cleans fuel injectors, carburetors and intake valves in one tank.
- Helps restore lost power, smooth idle and fuel economy from deposits.
- Concentrated formula treats a full tank and is safe for regular use.
Hand-picked deal
One of our top trending picks in Auto & Tools.
Live best price
We link straight to Amazon so you always see today's real price.
Fast shipping
Fulfilled by Amazon — fast, often Prime, delivery.
Easy returns
Backed by Amazon's secure checkout and return policy.
Was $17.47 — prices change fast on Amazon
Price as of June 22, 2026. Tap to see the current price.
Trending with drivers: the Red Line SI-1 Complete Fuel System Cleaner at today's Amazon price.
Red Line SI-1 Complete Fuel System Cleaner - Deal
Pour one bottle in the tank to scrub injectors and intake valves clean — rough idle and lost MPG often clear up by the next fill.
Red Line SI-1 Complete Fuel System Cleaner at a glance
- Product
- SI-1 Complete Fuel System Cleaner
- Brand
- Red Line
- Category
- Auto & Tools
- Price
- $17.47 (as of June 22, 2026)
- Availability
- In stock on Amazon
- Condition
- New
- Shipping
- Fast, often Prime
- Returns
- Amazon return policy
What you get when you buy through Promolyze
Only the standouts
How we choose
No stale prices
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Frequently asked questions
Is the Red Line SI-1 Complete Fuel System Cleaner worth buying?
It's one of the most popular Auto & Tools picks in our catalog. Pour one bottle in the tank to scrub injectors and intake valves clean — rough idle and lost MPG often clear up by the next fill.
How much does the Red Line SI-1 Complete Fuel System Cleaner cost?
It was $17.47 USD as of June 22, 2026. Amazon prices change often, so tap the buy button to see the current live price before you order.
Where can I buy the Red Line SI-1 Complete Fuel System Cleaner?
Use the buy button on this page — it takes you to the official Amazon listing with secure checkout, fast (often Prime) shipping, and Amazon's standard return policy.
Red Line
$17.47