CROMMELINS now supplies a Monograde SAE30 oil which they recommend for use in all SUBARU 4 stroke industrial engines and powered products.
SAE Engine Oils Viscosity
SAE stands for Society of Automotive Engineers. The SAE developed a classification system to define the viscosity, or thickness, of the oil.

OIL FUNCTIONS

1. Lubricate Parts and Prevent Wear
   This is the basic function of all oils. Keeping the moving parts separated.


2. Reduce Friction
   The film of oil reduces friction simply because there is no metal-to-metal contact.


3. Protect Against Rust and Corrosion
   As oils degrade they form corrosive by-products so the oil contains anti-corrosion and acid neutralising additives to protect components.


4. Keep Components Clean
   Oils need to be very stable under heat and not cause system deposits.


5. Be Compatible with Seals
   The oil must lubricate and not cause deterioration of seals.


6. Prevent Foam
   Foam reduces the lubrication properties of the oil, therefore industrial oils must be resistant to foaming or be able to ‘release’ any foam quickly.

• Permit Easy Starting
  Most wear occurs in an engine at start up. Therefore, the oil must have the correct low temperature viscosity to flow quickly to the bearings and valve train to prevent wear.
  
• Cool the Engine
  At least 40% of the engine is cooled by the oil.


• Reduce Combustion Chamber Deposits
  Some oil will always reach the combustion chamber – either via the cylinder walls or via the valves. It is then burned off with the fuel. So it must burn clean enough that it does not build up on valve seats or pistons tops which can cause problems.


The SUBARU Monograde SAE30 oil meets all the requirements for a general purpose monograde oil for SUBARU 4 stroke stationary engines. It is a non-friction modified oil which will provide protection against wear, rust and corrosion, while helping to keep engines clean and prolonging the life of the engine. Meets API SG/CC performance level and MIL-L-2104F.