EFFECTS OF SULFUR IN MOTOR GASOLINE ON ENGINE OPERATION

THIS paper gives the results of cooperative work carried out to investigate the effects of sulfur in gasoline on engine operation.

Sixty-two vehicles completed service tests at seven test sites to compare the effect of two gasoline sulfur levels - roughly 0.10 and 0.25% -on engine wear and cleanliness.

The test data show that the influence of high gasoline sulfur content may vary from a pronounced effect on cylinder and ring wear at some operating conditions to no effect under continuous operating conditions at normal engine temperatures.