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GPL

Analysis of working lubricants serves principally to distinguish engines that can be fitted with LPG equipment from those which cannot. It also helps to detect any work to be done prior to fitting LPG or find out why it cannot.

A/ CONDITIONS TO FULFIL BEFORE CONVERSION TO LPG: :

There are three conditions:

	The right working time for the oil bath
	Depending on what the vehicle is used for, we may ask you to shorten the intervals between oil changes if we detect any condensation or fuel in the lubricant.
	CAUSES : Fouling of the lubricant due to over-long use or exclusively urban use. Dilution by fuel after repeated cold starts and starts in urban conditions.
	Quality of petrol injection tuning
	When a controlled ignition engine is converted to LPG, the combustion temperature will rise, so it is vital to ensure the quality of combustion to prevent the combustion chamber from being fouled by the formation of deposits which would raise the temperature of the walls and fresh gas and could cause pinking. We can tell you if combustion is regular or poor due to the lubricant being over-diluted by the fuel or if fouling is serious.
	CAUSES : Wrong petrol pressure, clogged air filter, oxygen probe not working properly, plugs sooted up or poorly adjusted, dirty nozzle tips, excessive oil consumption, etc.…
	Working temperature
	LPG operation implies good heat exchange which requires a clean, perfectly sealed cooling circuit to ensure a constant engine temperature and prevent RE-IGNITION or RUMBLING at full load. Lubricant analysis can reveal poor sealing of the cylinder head or inadequate cooling of the unit.
	CAUSES : Cooling fluid too old, radiator scaled up, faulty thermostat, broken water pump, faulty electric fan or cooling fan, etc. …

B/ REASONS FOR REJECTING LPG: :

There are two of these:

	Wear due to malfunction	report sample
	Very poor combustion, excessive dilution, severely faulty air filtering and inflow of cooling fluid. Such malfunction usually causes severe wear to the moving parts and all or part of the engine cylinders.
	Analysis helps to establish a bill of health of the general mechanical condition and specify any work to be done before fitting.
	General wear
	Analysis will help to distinguish between engines that are very worn due to poor maintenance and those that are generally worn due to unit fatigue. It should be noted that the amount of wear is not necessarily related to the vehicle's mileage but often depends on the quality of maintenance.