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				 It was experimentally fitted with a Turbomeca jet engine in 1962, but fuel consumption was excessive, so the conventional diesel engine was fitted again.
			
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 Leyland's gas-turbine engined truck suffered from similar excessive fuel-consumption (even on motorways) at a time when fuel costs were rising steeply.
The rise in fuel costs resulted in Vauxhall ditching their OHC V8 engine (a double version of the slant-four engine) and the associated luxury limousine model saloon.