Buhler 2375, 2335, 2425, 2290, 2360 manual Fuel Requirements

SECTION 3 - LUBRICATION AND MAINTENANCE

Fuel Requirements

The quality of fuel used is an important factor for dependable performance and satisfactory engine life. Fuels must be clean, well-refined, and noncorrosive to fuel system parts. Be sure to use fuel of a known quality from a reputable supplier.

To obtain optimum combustion and minimum engine wear, the fuel selected for use should conform to the application and property requirements outlined in the following “Diesel Fuel Selection Chart.”

NOTE: When long periods of idling or cold-weather conditions below 0°C (32°F) are encountered or when continuously operating at an altitude above 1,524 m (5,000′), use Number 1-D fuel.

Using diesel fuel with sulphur content above 0.50% requires more frequent oil changes as noted in the maintenance schedule.

The use of diesel fuel with a sulphur content above 1.3% is not recommended.

Diesel Fuel Selection Chart

Do not use Number 2-D fuel at temperatures below -7°C (20°F). The cold temperatures will cause Number 2-D fuel to thicken, which may keep the engine from running. (If this happens, contact your Buhler Versatile dealer.)

For the best fuel economy, use Number 2-D whenever the temperature will permit.

To be sure a fuel meets the required properties, enlist the aid of a reputable fuel oil supplier. The responsibility for clean fuel lies with the fuel supplier as well as the fuel user.

General	Final Boiling	Temp. Range	Cetane	Sulphur Content
Fuel Class	Point (Max.)		(Min.)	(Max.)
No. 1-D	288°C (550°F)	-7°C (20°F)	40*	0.30%
		and below
No. 2-D	357°C (675°F)	-7°C (20°F)	40	0.50%
		and above

*When continually operating at low temperatures or high altitude, a minimum cetane of 45 is required.

Cummins position relative to use of Biodiesel fuel

At this time biodoesel blends up to B5 are the only blends approved for use in all Cummins engines for both On Highway and Off highway markets. B5 which is a blend of 5 percent pure biodiesel (B100) and 95 percent standard petroleum diesel has demonstrated to have no impact on engine performance, durability or maintenance. The industry standard known as ASTM D6751 defines the specifications for B100. However, this standard currently lacks a specification for stability. Without a specification, the quality of the fuel in blends higher than B5 could degrade to a point which could be damaging to engines. Cummins is supporting industry efforts to add a stability specification to the current ASTM standard, and continues to evaluate the impact of these blends on durability of engines. Until this spec is developed and tested, other blends of biodiesel will be unsuitable for use in Cummins On highway and Off highway engines.

3-3