Fuel

Important

Use of other types of fuel could damage the engine. Do not use dirty diesel fuel or mixtures of diesel fuel and water since this will cause serious engine faults.

Warning

Clean fuel prevents the fuel injectors from clogging. Immediately clean up any spillage during refuelling.
Never store diesel fuel in galvanized containers (i.e. coated with zinc). Diesel fuel and the galvanized coating react chemically to each other, producing flaking that quickly clogs filters or causes fuel pump and/or injector failure.
Any failure resulting from the use of fuel other than Tab. 2.3, 2.4 will not be covered by warranty.

Cetane number of 40 minimum. Cetane number greater than 47 is preferred, especially for temperatures below –20 °C (–4 °F) or elevations above 1675 m (5500 ft.).

Highly Regulated Engines (EU, USA, CANADA, JAPAN, CHINA, INDIA)

EU EN 590
North America ASTM D975 No. 2-D S15; No. 1-D S15
Japan JIS K 2204 No. 1; No. 2
India BS-V ULSD; BS-VI ULSD
China GB 19147-2016 ULSD; GB 17691—2018 ULSD
HVO EN 15940 or ASTM D975
Military NATO fuel F-54 S < 10ppm

Less or Not Regulated Engines (Rest of the World and Military applications)

Equivalent to all above specification
Equivalent to all above specification but with Suplhur < 500ppm
Equivalent to all above specification but with Suplhur < 2000ppm
F-34/F-35 (kerosene NATO designation) (1)
F-44 (kerosene, NATO designation) (1)
F-63 (kerosene, NATO designation, equivalent to F-34/F-35 with additives (1)
JP-8 (kerosene, US military designation) (1)
JP-5 (kerosene, US military designation) (1)
Jet A / A1 (kerosene for civil aviation) (1)

(1) Operations with Jet Fuels: The jet fuels can be used but only adopting an additional fuel filter with lubricity doser. Because of lower density and greater leak fuel volume due to lower viscosity, depending on the engine speed and torque, a power loss up to 10% is possible. There are some problematical fuel proprieties amongst the listed jet fuels (viscosity, lubricating capacities and low boiling point). A slight increase in wear in the injection system is to be expected which can lead to a statistically shorter life of these components. Sulphur content must be below 2000ppm

2.5.1 Fuel Additives

To aid in maintaining performance of the engines injection system, Rehlko has developed a family of fuel additives product for North America market.

The Extra Performance Fuel Additive Arctic Formula a fuel conditioner in winter, the Extra Performance Fuel Additive a fuel injector deposit removal and prevention. See your local Rehlko dealer for availability.

2.3

Extra Performance Fuel Additive (North America only)
Use Rehlko Injector Cleaner Diesel Fuel Additive before filling the tank once a year or every 500hrs with summer or winter grade fuel. Formulated to clean deposits from injectors and provide lubrication to high pressure pump and injectors to reduce wear, increasing fuel quality. Compatible with all exhaust emission system, including diesel particulate filters (DPFs). Follow all recommended instruction on product label.
Extra Performance Fuel Additive Arctic Formula (North America only)
Use Rehlko Extra Performance Fuel Additive Arctic Formula, which contains anti-gel chemistry to treat non-winter grad fuel (No. 2-D in North America) during the cold-weather season. This extends the operability to about 10°C (18°F) below the could point. For operability at even lower temperatures, use winter grade fuel. Treat the fuel when the outside temperature drops below 0°C (32°F). For best results, use untreated fuel and follow all recommended instruction on product label. Cloud point is the temperature at which wax begins to from in the fuel causing filters to plug.
Fuel additives with biocide/algaecide functions are allowed in case of storage of fuel in the tank for long periods (one year or more).	For suggested brands and types contact Rehlko staff
NOTE: These additives must be diluted in the fuel following the product prescribed percentages when filling the tank.