Quote:
Originally Posted by tranquility
Good question, also what are the causes to make walnut blasting a suggested remedy? For example, always high in the rev range, using the turbos constantly, etc?
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Well for a start, direct injection and the fact that there’s no “backwash” for the intake valves. All DI engines are vulnerable to this phenomenon. Some, like current generation Mazda Skyactiv fours, are better designed to alleviate the problem.