DPF
The Hidden Danger of EGR Modifications
That cheap blanking plate you had installed? It could be the exact reason your DPF keeps clogging up.
10 Apr 2026 · 4 min read
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Fuel additives & emissions, explained properly
ADDITIVE GEEK.
Automotive additives, formulation consultant and troubleshooting specialist. Free help from someone who has worked in the industry for over 15 years.
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About
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behind the geek.
Andy Archer has hands-on experience in the automotive additives industry, having originally founded FuelTechExperts in 2011 and multiple additive brands. He works directly with real vehicles and real problems, not just labs.
He has helped thousands of drivers and fleet operators solve DPF blockages, emissions faults, and drivability issues, working alongside formulators, chemists, and engineers. His approach: diagnose properly before spending money.
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Latest Articles
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What are Fuel System Cleaners REALLY Made of?
Many mainstream fuel system cleaners are little more than solvent. Here's what you're actually pouring into your fuel tank, and why it matters.
8 Apr 2026 · 5 min read
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Fuel
The Role of Polyether-amine (PEA) in Fuel Cleaners
PEA is the most effective chemistry available for cleaning carbon deposits from the combustion chamber and high-temperature zones of the fuel system. Here's why it matters.
7 Apr 2026 · 4 min read
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Straight answers.
Honest advice.
I don't care whose products you buy, just make sure you know what you're putting in your vehicle.