Stihl MS 251 vs Stihl MS 310 Chainsaw Comparisons

Specs that are different are highlighted in red. Specs that are better are written in bold. Notice that a chainsaw with a significantly larger number of bolded specifications is not necessarily a better chainsaw.

Chainsaw Details

Subjects of comparisons - brand and model.

Manufacturer	Stihl	Stihl
Model	MS 251	MS 310
Photo
Class	Homeowner	Farmowner
Warranty homeowner	365 days 1 year	365 days 1 year
Warranty commercial	90 days 0.25 year	90 days 0.25 year
Your rating	5/5 - (1 vote)	2.9/5 - (26 votes)

Engine Specs Comparison

Power, displacement and type of fuel of the chainsaws.

Fuel type	Gas	Gas
Fuel oil ratio	50:1	50:1
Weight	~4.8 kg ~10.58 lbs	~5.9 kg ~13.01 lbs
Engine	Stihl 2-Mix	Stihl 2-Mix
Power	3 hp 2.24 kW	4.4 hp 3.28 kW
Displacement	45.6 cm³ 2.78 in³	59 cm³ 3.6 in³
Torque	Nm	Nm
Idle speed	2800 RPM	2800 RPM
Max speed	13000 RPM	13000 RPM
Spark plug	NGK CMR6H, Bosch USR4A	Bosch WSR6F, NGK BPMR7A
Spark plug gap	0.5 mm 0.02 in	0.5 mm 0.02 in

Chain and Bar Comparison

Detailed chain and bar specifications side by side.

Bar length	40.64 cm 16 in	45.72 cm 18 in
Min bar length	35.56 cm 14 in	40.64 cm 16 in
Max bar length	45.72 cm 18 in	50.8 cm 20 in
Chain	Rapid Micro 3 (RM3)	Rapid Micro 3 (RM3)
Pitch	3/8" P	3/8" P
Gauge	1.3 mm 0.05 in	1.6 mm 0.06 in
Sprocket	Spur 7 Tooth	Spur 7 Tooth

Other specs

Fuel consumption, noise and liquid capacities.

Fuel consumption	1.075 l/hr 0.28 gal/hr	1.81 l/hr 0.48 gal/hr
Fuel capacity	0.39 l 13.19 fl oz	0.56 l 18.94 fl oz
Oil tank capacity	0.2 l 6.76 fl oz	0.33 l 11.16 fl oz
Noise (ear level)	103 dB(A)	102 dB(A)
Vibration front	3.9 m/s² 12.8 ft/s²	4.3 m/s² 14.11 ft/s²
Vibration rear	3.9 m/s² 12.8 ft/s²	4.7 m/s² 15.42 ft/s²

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