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Old 03-08-2019, 03:07 AM
robnitro robnitro is offline
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Location: NYC area
Join Date: Aug 2016
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Mein Auto: x5 35d e70 2011
Without dpf, there is no regen which makes the turbo run very hot even at idle/low rpm.

Shutting down during a regen is something that I feel is very bad for the oil in the turbos.
Edycol said that the synthetic oil can handle those temperatures, but it does add to possible coking when the oil is already getting compromised with soot and or depleted TBN.
Without flow on shut down the little oil that remains gets heat soaked.
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