Lexus UX 250h 2020 Owner's Manual page 419

This number is also stamped under the
right-hand front seat.
Engine
Model
Type
Bore and stroke
Displacement
Valve clearance (engine cold)
Drive belt tension
Fuel
Fuel type
Octane Rating
Fuel tank capacity (Reference)
Engine number
■
The engine number is stamped on the
engine block as shown.
2.0 L 4-cylinder (M20A-FXS)
4-cylinder in line, 4-cycle, gasoline
3.17  3.84 in. (80.5  97.6 mm)
121.3 cu.in. (1987 cm
Automatic adjustment
Automatic adjustment
Unleaded gasoline only
87 (Research Octane Number 91) or higher
10.6 gal. (40 L, 8.8 Imp.gal.)
8-1. Specifications
3
)
417
8