Chevron Techron Concentrate Plus Complete Fuel System Cleaner
Priced as of May 14, 2026
4.6(16,782 ratings)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
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Prices may varyCarCareTruth's Analysis
Last reviewed May 15, 2026
TL;DR PEA formula — polyetheramine, the most studied injector detergent chemistry — with the largest community track record in the category. Health score 5.0: DANGER from H304 aspiration hazard and a Prop 65 warning on the Amazon listing. Do not induce vomiting if ingested.
What it is and how it performs
Techron Concentrate Plus uses polyetheramine (PEA) chemistry — strongly indicated via international SDS cross-reference — at 15–20% by weight in a low-aromatic aliphatic carrier. PEA is the class most studied for injector deposit dissolution and intake valve carbon removal. Community evidence is the deepest in the category: 16,000+ Amazon ratings at 4.6 and BITOG benchmark status with 3,000-mile follow-up threads. No product-specific independent test found. The brand supports a one-time flush for symptomatic engines and 3,000-mile maintenance; both have community corroboration.
Who should buy this — and who should skip it
Best fit for owners running non-Top Tier gasoline who want a PEA maintenance treatment or mild deposit cleanup. Skip it if you consistently run Top Tier certified fuel — the OEM detergent package already covers this. Skip it for severe rough idle or stalling; at that severity, professional ultrasonic cleaning is the right call, not a single-bottle treatment.
Safety and environmental impact
SDS §2 is DANGER — H304 (aspiration toxicant: hazard is swallowed liquid entering the lungs, not contact or inhalation) and H227 (combustible liquid). No skin, eye, or respiratory H-codes at mixture level. Do not induce vomiting if ingested — seek medical attention. The product combusts in the engine; exhaust byproducts are the environmental endpoint. The Amazon listing carries a Prop 65 warning; no specific Prop 65 chemical is named in SDS §15.
From the manufacturer
Marketing copy from Chevron, via Amazon. Not editorial.
- •For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- •Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
- •Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
- •Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- •Improves: cold start performance, and fuel stability for up to one year
- •Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)
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Manufacturer specifications
- Brand
- Chevron
- Item Form
- Liquid
- Scent
- Fresh
- Specific Uses For Product
- Car Fuel System
- Material Feature
- Scented
- Special Features
- Concentrated
- Contains Liquid Contents?
- Yes
- Brand Name
- Chevron
- Global Trade Identification Number
- 00023968003098
- Manufacturer
- Chevron
- UPC
- 023968003098
- Model Number
- 67740-6PK
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Top Amazon review
↗External — Amazon's most-helpful review for context.
Use for ecoboost engines!
I’ve used fuel system cleaners before, and this one is one I keep coming back to.Just pour it into the tank and drive, couldn’t be easier. After running it through, I noticed smoother performance, especially at idle and during acceleration. Nothing dramatic overnight, but definitely a noticeable improvement.It’s a good option for helping keep the fuel system clean and running the way it should, especially if the vehicle does a lot of short trips.I also like using it as part of regular maintenance every so often rather than waiting for problems to show up.For the price and ease of use, it’s a simple way to help maintain engine performance.Bottom line, easy to use and a solid choice for routine maintenance.