Archoil Diesel Fuel System Kit
AR6400-D (12 oz) + AR6500 (40 oz) - Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity…
Price as of 2026-06-03. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$3–$10
- Mid-range:$10–$26
- Premium:$26+← You are here
Is This Right For You?
- •Buyers who prioritize quality over price in Fuel Additives
- •Those who want a top-rated option — in the top 1% of Fuel Additives by rating
- •You're on a tight budget — $40 above the category average of $20
- •STA-BIL Diesel Fuel Stabilizer And Performance Improver — 60% cheaper at $24 (Score B)
📊 Based on data analysis of 53 products in this category.
Mubboo Score: B
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Fuel Additives
Computed from live Amazon rating, review count, and price across 53 Fuel Additives available to US consumers · last refreshed 2026-06-03.
How It Compares
This Product Archoil Diesel Fuel System Kit | Most Popular Chevron 67740-CASE Techron Concentrate Plus Fuel System | Best Rated Red Line 60103 SI-1 Complete Fuel System Cleaner | Best Value STA-BIL Diesel Fuel Stabilizer And Performance Improver | |
|---|---|---|---|---|
| Price | $59.90 | $39.98 | $30.99 | $23.99 |
| Rating | 4.8/5 | 4.6/5 | 4.8/5 | 4.8/5 |
| Reviews | 2,699 | 16,871 | 9,236 | 1,493 |
| Mubboo Score | B | B+ | B+ | B |
Quick Specs
- Capacity
- 40 Fluid Ounces
- Unit Count
- 52 Ounce
- Item Volume
- 976 Milliliters
- Part Number
- AR-FSK
- Manufacturer
- Archoil
- Number of Items
- 2
- Customer Reviews
- 4.8 out of 5 stars
- Best Sellers Rank
- #493 in Automotive (See Top 100 in Automotive)#4 in Diesel Additives
What People Say
Synthesized from 40 reviews · 100% verified purchases.
For maximum cleaning power, choose a product with high PEA content like Red Line SI-1 or Chevron Techron, but expect to use multiple treatments for severe deposits. For long-term storage, use a dedicated stabilizer such as STA-BIL or Star Tron to prevent gum and starting problems.
- Improved engine performance and smoothness
- Effective fuel system cleaning and deposit removal
- Ease of use
- Fuel economy improvement
- Long-term fuel stabilization for storage
- High price and recent price increases
- Packaging issues during shipping
Related Video Reviews
- 📹 The TRUTH About DIESEL ADDITIVES…Scam or Science? — Freedom Worx
- 📹 STOP Buying Diesel Fuel Additives - Here's Why! — The Motor Oil Geek
- 📹 Redline SI-1 vs Techron — Which One Is Actually Worth Your Money? | Fuel System Cleaner Finals — Chris from Beachside Auto Parts
Key Features
- ✦TWO-STEP FUEL SYSTEM RESET: Includes AR6400-D Diesel Fuel System Cleaner + AR6500 Diesel Treatment (40 oz) for a complete clean-and-maintain solution
- ✦HOW IT WORKS: Use AR6400-D first for a deep clean (12 oz treats 30-40 gallons), then use AR6500 at every fill-up for ongoing protection (40 oz treats up to 400 gallons)
- ✦FOR ALL DIESEL ENGINES: Suitable for all diesel vehicles and equipment, including modern HPCR systems
- ✦CLEANS INJECTORS & RESTORES RESPONSE: Removes injector deposits and restores spray patterns for smoother running, improved response, and more efficient combustion
- ✦IMPROVES LUBRICITY (ASTM D6079): AR6500 is tested to improve lubricity by 43% to protect fuel system components, including wear-sensitive parts like the CP4 pump
Source: product listing on Amazon.
If not the Diesel Fuel System Kit, consider these
Bottom Line
Archoil Diesel Fuel System Kit earns Mubboo Score B. Priced at $60 — a premium option, above the category average of $20. Rated 4.8/5 from 2,699+ reviews. Strong buy if: buyers who prioritize quality over price in fuel additives, those who want a top-rated option. Skip if: you're on a tight budget — Chevron 67740-CASE Techron Concentrate Plus Fuel System (Score B+, $40) may fit better.
Frequently Asked Questions
Is the Archoil Diesel Fuel System Kit worth buying in 2026?
It earns a Mubboo Score of B, with a 4.8/5 rating from 2,699 reviews — better than 100% of Fuel Additives we track.
How much does the Archoil Diesel Fuel System Kit cost?
It is currently $59.90 — premium-tier pricing for Fuel Additives.
How does the Diesel Fuel System Kit compare to other Fuel Additives?
The category's most-reviewed alternative is the Chevron 67740-CASE Techron Concentrate Plus Fuel System (4.6/5, 16,871 reviews, $39.98). The Diesel Fuel System Kit carries a Mubboo Score of B vs B+.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-03) and may change.