Mazda 1.5 SkyActiv-D Engine Specs, Problems, and Reliability. The 1.5 SkyActiv-D or the S5-DPTR and S5-DPTS – 1.5-liter turbo-diesel engines that were used marketed by Mazda under its ‘SkyActiv-D’ label. This diesel motor was provided optionally with Mazda’s brake energy regrowth system ‘i-ELOOP’ (Intelligent Energy Loop).
The 1.5 SkyActiv-D engines have the aluminum alloy cylinder head with chain-driven double overhead camshafts. There are 4 valves per cylinder that activated via roller rockers. The 1.5 SkyActiv-D engines had a variable turbine geometry (VTG) compact turbocharger. Charged air goes through a water-cooled intercooler that integrated into the plastic intake manifold. The engine had high-dispersion solenoid fuel injectors. For combustion stabilization and decreasing knocking, the fuel is injected as much as 4 times per combustion cycle.
The engine cooling system features cooling water control valves (CCV). Likewise, the cylinder blocks are geared up with water coat spacers for enhanced combustion performance and decreased mechanical resistance. The 1.5 SkyActiv-D engine had low- and high-pressure exhaust gas recirculation systems to guarantee sufficient boost pressure under heavy loads.
Table of Contents
1.5 SkyActiv-D Engine Problems and Reliability
The mindset of vehicle owners to the engines of Skyactive is unclear. Problems were signed up with an increasing oil level and regular regeneration cycles. Cars with comparable symptoms tend to have high fuel usage. The 1.5 engine is a little performer for a little Mazda SX-3 vehicle or Mazda 2 design; as a result, numerous vehicle owners enjoy active driving, decreasing engine resource, which does not go beyond 300,000 km. The engine is expensive to repair even more than other makers because of non-standard and ingenious options in the design.
you must see more engine detail in here: Engine – US Cars News or you can see on wiki here
Mazda 1.5 SkyActiv-D Engine Specs
| Manufacturer | Mazda |
| Production years | 2015-present |
| Cylinder block material | Aluminum |
| Cylinder head material | Aluminum |
| Fuel type | Diesel |
| Fuel system | Direct fuel injection |
| Configuration | Inline |
| Number of cylinders | 4 |
| Valves per cylinder | 4 |
| Valvetrain layout | DOHC |
| Bore, mm | 76.0 |
| Stroke, mm | 82.5 |
| Displacement, cc | 1,497 cc (91.35 cu in) |
| Type of internal combustion engine | Four-stroke, turbocharged |
| Compression Ratio | 14.0:1 |
| Power, hp | 103 hp (77kW)/3,500-4,500 |
| Torque, lb ft | 162-199 lb-ft (220-270 Nm)/1,600-2,500 |
| Engine weight | – |
| Firing order | 1-3-4-2 |
| Engine oil weight | 0W-30 |
| Engine oil capacity, liter | 5.1 – service change, 5.8 – dry , 0.4 – filter |
| Oil change interval, mile | 12,000 (20,000 km)/12 months |
| Applications | Mazda DK CX-3, Mazda 2 |
