Bardahl Engine Flush (art. 1032) and Mannol Motor Flush 9900 are built on two completely different chemistries. Bardahl is a solvent-based flush (aliphatic base 80-90% + kerosine <10% + glycol ether) - more aggressive, made for heavily sludged engines. Mannol is an oil-based detergent flush (paraffinic oil up to 95%) - gentle, made for high […]
Würth vs Liqui Moly Engine Flush - SDS-Based Comparison
Würth Engine Flush & Cleaner and Liqui Moly Engine Flush come from the same group. Würth owns Liqui Moly outright. Put the two safety data sheets side by side and the base is nearly the same: a C10-C13 hydrocarbon solvent at 70-90%, plus a ZDDP anti-wear additive. The gap is small. Würth adds a calcium […]
Wynn’s Oil System Cleaner (Motor Cleaner): Ingredients, Use & Safety
Wynn’s Oil System Cleaner (sold in some markets as “Motor Cleaner”, 325 ml) is a mild, “drive-in” flush. You add it to the old oil before a change, let the engine idle 10-15 minutes, then drain and swap the filter. It’s no solvent bomb. The cleaning comes mostly from a detergent (a surfactant) plus plain […]
Liqui Moly - About the Brand: Owner, History and Origin
Liqui Moly (100% Würth Group) is a German brand of engine oils, lubricants and car-care chemicals. It’s based in Ulm and has been around since 1957. The name comes from its first product - a liquid oil additive based on molybdenum disulfide (MoS₂). Legally it runs as Liqui Moly GmbH, its own company inside the […]
Ultrasonic Diesel Injector Cleaning: Cost, Effectiveness and When It Won’t Help
Ultrasonic injector cleaning pulls deposits - carbon, varnish, coking - out of injectors that have been taken off the engine and dropped into a ~40 kHz bath. It runs about the equivalent of €25-70 per injector and only earns its keep as the first step of a full service that ends on a flow bench. What […]
Does an Engine Flush Actually Clean, or Just Coat?
Answer: Whether a flush cleans or just coats comes down to one thing: how hard its base solvent dissolves deposits. That is what the kauri-butanol value measures (KB, ASTM D1133). Light aliphatic flushes are gentle because they are weak - KB around 30. An aromatic base sits near KB 105 and cuts varnish roughly three […]
TEC 2000 vs Moje Auto: Which Engine Flush Is Better?
TEC 2000 vs Moje Auto: Which Engine Flush Is Better? Short answer: premium versus budget. Moje Auto (MA Professional) is the cheap one. About €4 for 400 ml, built on a clean synthetic GTL base (Fischer-Tropsch), and its safety data sheet lists no lubricant additive. TEC 2000 Engine Flush costs roughly 4-5× more per ml. […]
TEC 2000 vs Bardahl: which engine flush is better?
TEC 2000 vs Bardahl: which engine flush is better? Short answer: Bardahl sells two flushes and people mix them up constantly. One is Engine Flush (ref. 1032, 300 ml). It’s a solvent flush, and its safety data sheet lists kerosene (1-10%) with no separate anti-wear additive. The other, Engine Tune-Up & Flush (4019), does have […]
Symptoms of Bad or Clogged Diesel Injectors
Answer capsule: Bad or clogged diesel injectors cause seven telltale symptoms: hard cold starts, black or white exhaust smoke, rough idle and misfire, higher fuel consumption, a check-engine light, a sharp diesel “knock,” and a raw fuel smell. Carbon deposits often respond to a quality PEA cleaner; mechanical injector failure does not and requires reconditioning […]
Will an Engine Flush Cause Leaks? Myths vs Facts
A correctly chosen engine flush will not cause leaks. The modern gentle ones carry lubricant alongside the solvent, so they are safe for seals. Leaks turn up in one situation only: a harsh kerosene product pulls sludge off a seal that had already gone hard and cracked on a high-mileage engine. The flush shows you […]