Turbochargers... durability, reliability ?
Some years ago, turbochargers seemed to be considered service items, that may or may not last the engine life of the vehicle. We're thinking of getting a new midsize SUV, that will be able to do light...
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As others have posted, I idle the engine for a couple minutes if I had just worked the engine hard and came to short stop. If you are pulling off the highway and working your way around to a fuel pump at a service station, that is usually enough time for the cool down without additional idling.
You will find most turbo gasoline engines require higher octane fuel than their normally aspirated versions which will increase your fuel costs. There are a few engines that run on lower octane and adjust engine tune based the volatility of the fuel. Additional heat and compression ratio is what drives the use of higher octane fuel, so there are engine management controls that can sense pre-detonation and back off engine output to prevent this.
I am actually surprised at longevity and reliability of the current turbos compared to 20 years ago or longer. I would no longer consider them limitations on how long your engine will run before needing an overhaul.
You will find most turbo gasoline engines require higher octane fuel than their normally aspirated versions which will increase your fuel costs. There are a few engines that run on lower octane and adjust engine tune based the volatility of the fuel. Additional heat and compression ratio is what drives the use of higher octane fuel, so there are engine management controls that can sense pre-detonation and back off engine output to prevent this.
I am actually surprised at longevity and reliability of the current turbos compared to 20 years ago or longer. I would no longer consider them limitations on how long your engine will run before needing an overhaul.
