OIL AND PETROL

Press, Volume CX, Issue 32406, 19 September 1970, Page 15

OIL AND PETROL

Complete books have been written on the extensive research carried out to develop an oil containing suitable proportions that will mix with petrol thoroughly while carrying ing out sufficient lubrication required by a twostroke motor, and last, but not least, be thoroughly consumed in the combustion chamber. the exactly correct mixture of oil to petrol is of prime importance as only a specific amount of oil can be consumed in the combustion chambers. If too much oil is used, the amount that remains unburnt in the combustion chamber must deposit somewhere in the motor. The most likely place for this residue is around the pistons and piston rings, resulting in gummed piston rings and eventual engine seizure. To avoid this, do not guess at the right amount of oil—measure it accurately and ensure that it is thoroughly mixed with the petrol. Another important point is to use only standard grade petrol, as the lead content in some higheroctane fuels make them unsuitable for use in an outboard motor. If there is any doubt as to the oil that is presently

being used, a reputable dealer will give detailed information and assistance.