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Old 01-19-2019, 07:51 PM   #10 (permalink)
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Jetter - '17 VW Jetta S Automatic
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Originally Posted by oil pan 4 View Post
In a gasoline powered engine.
Diesel engines want more air.

Thanks for clarifying. So, to be sure..
Gas engine under boost = bad (inefficient)
Diesel engine under boost = good (efficient)

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