DPF Problem in Singapore: Why More Diesel Trucks Are Getting Clogged

Traffic Police begin enforcement against heavy vehicles without speed limiters — An officer from the Traffic Police Special Operations Team carrying out checks on a lorry during an enforcement operation in Hougang on Jan 16. ST PHOTO: LIM YAOHUI

If you are a truck driver operating in Singapore, you may have noticed one thing lately — DPF warning lights appearing more often.

With stricter speed limiter enforcement, many heavy vehicles are now running at or below 60km/h most of the time. While this improves road safety, it also creates an unexpected side effect for diesel engines.

Why Driving Slow Causes DPF Problems

Modern diesel trucks are equipped with a Diesel Particulate Filter (DPF). Its job is to trap soot from exhaust gas and burn it off through a process called regeneration.

For proper regeneration to happen, the exhaust system needs high temperature — usually achieved during sustained highway driving at higher speeds.

When trucks operate mostly at lower speeds:

Engine temperature stays lower
Exhaust heat is insufficient
Soot cannot burn off completely
DPF gradually becomes clogged

Over time, this leads to:

DPF warning light
Reduced engine power
Higher fuel consumption
Possible limp mode
Costly workshop visits and downtime

Common Questions from Singapore Truck Drivers

Why does my DPF light keep coming back?

Because short-distance and low-speed driving prevent full regeneration cycles. The soot builds up faster than it can burn off.

Do I need to remove and dismantle my DPF?

Traditional cleaning often involves removing the DPF, which is time-consuming and expensive. It also means downtime for your vehicle.

Is there a preventive solution?

Preventive maintenance is often more cost-effective than reactive repairs. Supporting cleaner combustion and soot reduction can help reduce the risk of blockage.

A Simpler Way to Support DPF Regeneration

AceRev DPF Cleaner is designed to be poured directly into the diesel tank. No dismantling. No messy removal process.

By improving fuel combustion and helping reduce soot accumulation, it supports the natural regeneration process while you drive.

For trucks that:

Operate mainly in urban traffic
Run frequently below 60km/h
Enter and exit Singapore daily

Preventive DPF care is increasingly important.

Protect Your Truck Before the Warning Light Appears

If your vehicle spends most of its time in low-speed conditions, understanding how DPF works can save you from unnecessary breakdowns and workshop bills.

Taking action early helps reduce risk, downtime, and unexpected costs.

For more information about AceRev DPF Cleaner and how it supports diesel engines operating under Singapore road conditions, contact us today.