Oil burning as in seeing smoke or in having to add oil? If it is the latter, you need to identify where your oil is going...
1. Past rings -> crankcase (not an issue with open breather)
2. Past valves -> into exhaust (I think unusual in our engines)
3. Past turbo "seal" -> into exhaust (could be excess resistance in return line, increased air intake resistance, decreased exhaust resistance, oil too thin)
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