Editing Indirect injection (section)

===Advantages of indirect injection combustion chambers===
* Smaller diesels can be produced.
* The injection pressure required is low, so the injector is cheaper to produce.
* The injection direction is of less importance.
* Indirect injection is much simpler to design and manufacture, especially for gasoline engines. Less injector development is required and the injection pressures are low (1500&nbsp;psi/100 bar versus 5000&nbsp;psi/345 bar and higher for direct injection)
* The lower stresses that indirect injection imposes on internal components mean that it is possible to produce [[petrol]] and indirect injection diesel versions of the same basic engine. At best such types differed only in the cylinder head and the need to fit a [[distributor]] and [[spark plug]]s in the petrol version whilst fitting an [[injection pump]] and [[fuel injector|injectors]] to the diesel. Examples include the BMC [[BMC A-Series engine|A-Series]] and [[BMC B-Series engine|B-Series]] engines and the [[Land Rover]] 2.25/2.5-[[litre]] 4-cylinder types. Such designs allow petrol and diesel versions of the same vehicle to be built with minimal design changes between them.
* Higher engine speeds can be reached, since burning continues in the prechamber.
* Alternative fuels like [[bio-diesel]] and [[waste vegetable oil]] are less likely to damage the fuel system in an indirect-injection diesel engine, as high injection pressures are not needed. In direct-injection engines (especially modern engines using high-pressure [[common rail]] fuel systems), keeping fuel filters in good condition is more critical as debris can damage the pumps and injectors when waste vegetable oil or waste engine oil are used.