From 1998 to 2004, the Mazda RF-T DI or 2.0 DiTD, a 2.0-liter diesel engine, was manufactured and fitted to the company’s most well-liked models, including the 323, 626, and Premacy. This power unit was modified in three different ways: RF2A, RF3F, and RF4F.

The RF and R2 diesel engines are also members of the R-engine family.
The engine was mounted on:
- Mazda 323 BJ in 1998 – 2003;
- Mazda 626 GF in 1998 – 2002;
- Mazda Premacy CP in 1999 – 2004.
Specifications
| Production years | 1998-2004 |
| Displacement, cc | 1998 |
| Fuel system | direct injection |
| Power output, hp | 90 (basic modifications RF2A, RF3F) 100 – 110 (powerful modification RF4F) |
| Torque output, Nm | 220 (RF2A, RF3F) 220 – 230 (RF4F) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 18.8 |
| Features | SOHC (RF2A, RF3F) SOHC, intercooler (RF4F) |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes (RF2A, RF3F) VGT (RF4F) |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.7 |
| Fuel type | diesel |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for Mazda 626 2000) — city — highway — combined |
7.4 5.1 5.9 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 210 |
Disadvantages of the Mazda RF-T DI engine
This unit’s issues are typical of diesel engines; it has no proprietary weaknesses.
It is simple to get there for fuel equipment repair, but the motor dislikes poor-quality diesel fuel;
The turbine’s largest resource, which is between 100,000 and 200,000 kilometers, is not well known;
Every 100,000 kilometers, the timing belt should be replaced because if it breaks, the rocker will be damaged;
This place lacks hydraulic lifters, and the valve needs to be changed every 100,000 kilometers.
