LABORATORY TEST FOR ASSESSING THE TENDENCY OF A GASOLINE, OPTIONALLY CONTAINING AN ADDITIVE, TO CAUSE DEPOSITS WHILE THE ENGINE IS RUNNING

摘要

The invention concerns a novel laboratory test for assessing the tendency of a gasoline, optionally containing an additive, to cause deposits while the engine is running, comprising the following steps: placing a tube in the oven of a gas chromatograph oven; maintaining said tube at a constant temperature under a constant air flow; injecting the gasoline or additive-containing gasoline to be tested through said tube; and determining the amount of deposits formed by weighing the tube after removal.