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Its less of a design issue and more of a nature of the beast issue. Direct injection has been around for a long time. It allows the engine to burn cleaner, more fuel efficiently, and has better knock control.
But there's a reason it hasn't been in use. Its not nearly as reliable as manifold injection, and on its own allows for carbon build up on valves which is why Toyota uses a hybrid system. But we have to use it now to make emissions. So, for the same reason we don't get the Hilux or super fuel efficient diesel options, thank big daddy government.
But there's a reason it hasn't been in use. Its not nearly as reliable as manifold injection, and on its own allows for carbon build up on valves which is why Toyota uses a hybrid system. But we have to use it now to make emissions. So, for the same reason we don't get the Hilux or super fuel efficient diesel options, thank big daddy government.
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