Are there any special precautions I should take to preserve a petrol turbo engine?
I have a Kia Sportage with a turbo petrol engine. Are there any special precautions on stopping and starting the engine that I should take? And any maintenance processes that should be carried out to preserve and maintain the longevity of the turbo?
Yes. If you stop after constant speed running on the motorway, or at the top of a long hill, the start-stop probably will not switch off the engine because the turbo is too hot. Best leave it running for a minute or two to ensure the turbo cools with engine oil flowing through its bearing, otherwise the oil in the oil feed could carbonise, partially blocking it and starving the turbo bearing of oil. That is the reason for most turbo failures.
Answered by Honest John on