The 3.3-liter inline-six turbo engine Mazda H3-VPTS (e-Skyactiv G 3.3) has been produced since 2023 for top versions of the CX-60, CX-70 and CX-90 crossovers. It works with a 48-volt mild hybrid system, produces 284-345 hp and belongs to the same series as the T3-VPTS and T3-VPTH diesels.
Skyactiv-G family: P5-VPS, PE-VPS, PY-VPS, PY-VPTS, H3-VPTS.
Specifications
| Production years | since 2023 |
| Displacement, cc | 3283 |
| Fuel system | direct injection |
| Power output, hp | 284 – 345 |
| Torque output, Nm | 450 – 500 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 94.2 |
| Compression ratio | 12.0 |
| Features | Mild Hybrid 48V |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual S-VT |
| Turbocharging | TwinScroll by Garrett |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 6.0 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Mazda CX-90 2024) — city — highway — combined |
9.9 8.4 9.3 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Mazda CX-60 I (KH) since 2023;
- Mazda CX-70 I (KJ) since 2024;
- Mazda CX-90 I (KK) since 2023.
Disadvantages of the Mazda H3-VPTS engine
- The engine is new and there is little information about it yet;
- Owners complain only about electrical glitches, especially of the start-stop system; some mechanics note that the engine is complicated to service;
- Like all direct-injection engines, it is prone to carbon deposits on the intake valves;
- Spare parts and used engines are still hard to find.
Frequently asked questions about the Mazda H3-VPTS
How much power does the Mazda H3-VPTS make?
The Mazda H3-VPTS develops 284 - 345 hp and 450 - 500 Nm of torque.
How much oil does the Mazda H3-VPTS take and which one?
Engine oil capacity: 6.0 liters. Recommended oil: 0W-20.
Does the Mazda H3-VPTS have a timing belt or chain?
The Mazda H3-VPTS uses a timing chain.
Is the Mazda H3-VPTS turbocharged?
Yes, the Mazda H3-VPTS is turbocharged (TwinScroll by Garrett).
Does the Mazda H3-VPTS need valve clearance adjustment?
No, the Mazda H3-VPTS has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Mazda H3-VPTS last?
The typical lifespan of the Mazda H3-VPTS is ~250 000 km with proper maintenance.
What is the fuel consumption of the Mazda H3-VPTS?
Mazda CX-90 2024: city 9.9, highway 8.4, combined 9.3 L/100 km.
What cars was the Mazda H3-VPTS installed on?
Mazda CX-60 I (KH) since 2023; Mazda CX-70 I (KJ) since 2024; Mazda CX-90 I (KK) since 2023.
What are the common problems of the Mazda H3-VPTS?
The engine is new and there is little information about it yet. Owners complain only about electrical glitches, especially of the start-stop system; some mechanics note that the engine is complicated to service. All known problems.





