Marine Fuel Reliability

B40 filter blocking under control

A tug boat operator working in mining logistics started getting fuel filters blocked fast after switching to B40 biodiesel. Filters that should have protected the engine were failing every 6 days, clogged with heavy sludge.

Discuss fuel filter blocking → See field proof

CustomerTug boat fleet operator

ApplicationB40 marine fuel

Before treatmentFilter change at day 6

After treatmentFinal change at day 32

The Real Problem

Filters were blocking every 6 days, cutting vessel availability

The customer runs a large tug boat fleet supporting mining logistics. For this kind of work, engine reliability affects vessel availability, towing schedules, and crew planning directly.

With B40 fuel, filters were clogging with heavy dark sludge within 6 days. Every replacement meant downtime, wasted filters, engine-room work, and a risk that fuel flow would turn unstable if a filter was left too long.

The goal wasn't just longer filter life. It was cleaner fuel handling, more predictable maintenance, and confidence that the tug boat would have power when it needed it.

Field Evidence

Filter life extended from 6 days to 32 days with additive treatment

Fuel filters with heavy sludge after 6 days before additive use — Before additive **Day 6 replacement** *Heavy sludge and dark filter loading forced a short service interval.*

Fuel filter still clean after 14 days with additive treatment — With additive **Day 14 inspection** *Filter remained visibly clean with no thick sludge build-up.*

Fuel filter at final change after 32 days with no visible thick sludge — With additive **Day 32 final change** *Final change occurred at day 32, still without visible thick sludge.*

6 daysPrevious filter life

14 daysClean inspection with additive

32 daysFinal change after additive use

5x+Filter interval improvement

Why It Matters

Frequent filter changes mean more downtime, waste, and spill risk

Downtime moved from planned to reactive

Short filter life meant more frequent stops and made it harder to plan vessel availability across the fleet.

Waste and cost went up

Heavy sludge meant more filters to dispose of, more oily waste to handle, and more spare filters used.

More risk in the engine room

Every extra filter change means more time in the engine room, more manual handling, and more chance of a spill.

Engine power could become inconsistent

Clean filters keep fuel flowing steadily. Blocked ones raise the risk of losing power when the tug needs it most.

Inneron Solution

Inneron's biodiesel additive stabilizes B40 fuel before sludge forms

Inneron introduced a biodiesel additive program built for B40 use in marine service. The goal was simple: control deposits, keep the fuel clean, and stop filter clogging from limiting the vessel.

Instead of accepting filter changes as a normal cost of running B40, the program went after the real problem: sludge buildup, short filter life, and maintenance you couldn't plan around.

Before Reactive filter changes Heavy sludge accumulation forced replacement after 6 days and increased downtime, waste, and manhours.

After Cleaner B40 operation Filter remained clean at day 14 and reached final change at day 32 with no visible thick sludge.

What Changed

Filter life increased from 6 to 32 days, cutting downtime fleet-wide

Stretching filter life from 6 days to 32 days meant far fewer maintenance interruptions, a cleaner, more predictable way to run B40 in tug boat service.

See Turbio Heavy Duty Marine Plus →

Less unplanned downtimeLonger filter life reduces vessel stoppages and helps keep tug schedules more predictable.

Less wasteFewer filter changes mean less waste to dispose of.

Less risk, less manual workFewer engine-room visits mean less manual handling and lower spill risk.

More stable fuel deliveryCleaner filters mean steadier fuel flow and more reliable power under load.

For Fleet Operators

B40 reliability depends on what happens before the filter plugs

Inneron helps marine and industrial operators find the cause of filter blocking, choose the right additive, and prove it works in real conditions.

Review your B40 filter issue →