Insights
Marine knowledge,
written by the board
Practical guides on marine misfuel, water in diesel, the diesel bug, and engine recovery — published by the EEK board of directors.
Petrol in a Diesel Car: Why You Must Not Start the Engine
Diesel injection systems are finely machined and rely on fuel for lubrication. Petrol strips that protection in seconds — here's why starting the engine is the one thing you must avoid.
Petrol in a Diesel Boat: Why You Must Not Start the Engine
Petrol in a marine diesel tank can damage the injection system in seconds. Here's why marine diesels are so vulnerable and what to do before you touch the key.
Petrol in a Diesel Boat: Why You Must Not Start the Engine
Petrol in a diesel boat can damage the injection system within seconds of starting. Here's why marine diesel injection is so vulnerable, and what to do before you turn the key.
Ethanol E10 Damage in Marine Engines: Phase Separation
Ethanol (E10) fuel can cause phase separation in marine tanks, leading to issues like ethanol-water mixtures. Older outboard engines are most at risk due to their design and age.
Petrol in a diesel car: why you must not start the engine
Petrol in a diesel tank can damage high-pressure injection components within seconds. Here's why these systems are so vulnerable and what to do before you touch the key.
E10 Ethanol in Boat Tanks: Phase Separation and Older Outboards
Why E10 petrol can separate in boat fuel tanks, what phase separation does to older outboards, and how to protect your vessel before and after it happens.
Petrol in Diesel Boats: Why Your Engine is at Risk
Petrol in a diesel boat can cause severe engine damage. Learn why marine diesel systems are vulnerable and what to do immediately.
NZ Marine Insurers & Boat Fuel Damage: What You Need to Know
Understanding how NZ marine insurers handle misfuel and water-damage claims, and why engine operation could affect your claim.
Ethanol E10 Damage in Marine Engines: Phase Separation
Ethanol (E10) fuel can cause phase separation in boat tanks, leading to issues like ethanol-water mixtures. Older outboard engines are most at risk due to their design and age.
Swamped or Submerged Outboard Recovery: Why Salt Water Corrodes Quickly & What to Do
Discover why salt water can corrode a powerhead within hours after an outboard engine is submerged or swamped. Learn what to do immediately and how EEK Mechanical provides swift, professional recovery services for marine vessels.
Preventing Marine Fuel Contamination Over Winter Lay-Up
Learn how to prevent marine fuel contamination during winter lay-ups, including condensation, stabilizers, biocides, and pre-season checks. Protect your vessel's engine system with EEK Mechanical’s certified technicians.
8 Ways to Avoid Misfuelling Your Boat at the Marina Fuel Dock
Misfuelling your boat can be costly and dangerous. Here are eight practical tips to prevent it, including nozzle checks, jerry can labelling, and tender fuel habits.
Milky Marine Oil: What It Means & How to Handle
Water in a boat engine's oil can be caused by failed exhaust risers, raw water ingress, or other issues. EEK Mechanical explains the causes and what you should do right now to prevent further damage.