Stihl updates their popular MS 260 professional chainsaw

The new saw shows fuel consumption improvements of up to 20%.

The 2.8kW petrol chainsaw is considered to be a versatile mid-range petrol chainsaw. Fuel consumption has decreased by up to 20% and exhaust emissions have been reduced by up to 50%. The saw is suited to applications ranging from cutting firewood, to thinning work and felling medium sized trees. Stihl highlights the following features of the new saw:

• Stihl ElastoStart: The damping element in the ElastoStart special starter grip alternately absorbs and releases force according to the compression pattern. The result is smooth, even starting.
• Carburettor heating: By changing the chainsaw from summer to winter operation, the intake air is pre-heated over the engine fins. This ensures that the carburettor does not ice up and you can continue working in freezing temperatures.
• Pre-separation air filtration system: Stihl long-life air filtration systems with pre-separation achieve longer filter life compared with conventional filter systems. Air drawn in is swirled, with the larger, heavier particles being ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.
• HD2 filter: This air filter keeps the finest dust away from the engine, ensuring a long service life. The filter can easily be cleaned by washing.
• Stihl 2-MIX engine: The exhaust emissions are separated from the unburnt gas. This minimises scavenging losses (the percentage of the mix that is discharged without burning), while increasing performance and reducing fuel consumption.
• Advanced combustion technology: Four overflow channels swirl the fuel-air mix before ignition, allowing for good combustion and efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.
• Controlled-delivery oil pump: Different bar lengths, wood types and sawing techniques require different amounts of oil. The controlled-delivery oil pump allows the user to select just the right amount of oil for the job at hand.
• Compensator: This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant. The filter doesn't need to be cleaned until an appreciable drop in power occurs.
• Decompression valve: This is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.
• Stihl anti-vibration system: Buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother and allows the user to work longer.

Summarized technical data can be found in the table below. Source:  http://www.stihl.com/STIHL-power-tools-A-great-range/Chainsaws-saw-chains-guide-bars/Petrol-chainsaws-for-forestry/21781-131/MS-261.aspx